4123421340 has 96 divisors (see below), whose sum is σ = 11876155200. Its totient is φ = 1068189696.

The previous prime is 4123421339. The next prime is 4123421371. The reversal of 4123421340 is 431243214.

It is a self number, because there is not a number n which added to its sum of digits gives 4123421340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2114686 + ... + 2116634.

It is an arithmetic number, because the mean of its divisors is an integer number (123709950).

Almost surely, 2^4123421340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4123421340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5938077600).

4123421340 is an abundant number, since it is smaller than the sum of its proper divisors (7752733860).

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

4123421340 is a wasteful number, since it uses less digits than its factorization.

4123421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4123421340 is about 64213.8718658204. The cubic root of 4123421340 is about 1603.5625487458.

Adding to 4123421340 its reverse (431243214), we get a palindrome (4554664554).

The spelling of 4123421340 in words is "four billion, one hundred twenty-three million, four hundred twenty-one thousand, three hundred forty".