4412421640 has 128 divisors (see below), whose sum is σ = 11147310720. Its totient is φ = 1557964800.

The previous prime is 4412421583. The next prime is 4412421647. The reversal of 4412421640 is 461242144.

It is a junction number, because it is equal to n+sod(n) for n = 4412421599 and 4412421608.

It is not an unprimeable number, because it can be changed into a prime (4412421647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4996639 + ... + 4997521.

It is an arithmetic number, because the mean of its divisors is an integer number (87088365).

Almost surely, 2^4412421640 is an apocalyptic number.

4412421640 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 4412421640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5573655360).

4412421640 is an abundant number, since it is smaller than the sum of its proper divisors (6734889080).

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

4412421640 is a wasteful number, since it uses less digits than its factorization.

4412421640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 4412421640 is about 66426.0614518127. The cubic root of 4412421640 is about 1640.1831096359.

Adding to 4412421640 its reverse (461242144), we get a palindrome (4873663784).

The spelling of 4412421640 in words is "four billion, four hundred twelve million, four hundred twenty-one thousand, six hundred forty".