4121422440 has 128 divisors (see below), whose sum is σ = 13001472000. Its totient is φ = 1043144960.

The previous prime is 4121422439. The next prime is 4121422447. The reversal of 4121422440 is 442241214.

It is a super-2 number, since 2×4121422440² = 33972245857871107200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4121422440.

It is not an unprimeable number, because it can be changed into a prime (4121422447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355861 + ... + 367259.

It is an arithmetic number, because the mean of its divisors is an integer number (101574000).

Almost surely, 2^4121422440 is an apocalyptic number.

4121422440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4121422440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6500736000).

4121422440 is an abundant number, since it is smaller than the sum of its proper divisors (8880049560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4121422440 is a wasteful number, since it uses less digits than its factorization.

4121422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11567 (or 11563 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4121422440 is about 64198.3055851165. The cubic root of 4121422440 is about 1603.3033886127.

Adding to 4121422440 its reverse (442241214), we get a palindrome (4563663654).

The spelling of 4121422440 in words is "four billion, one hundred twenty-one million, four hundred twenty-two thousand, four hundred forty".