4044932640 has 240 divisors, whose sum is σ = 16314927552. Its totient is φ = 924535296.

The previous prime is 4044932623. The next prime is 4044932681. The reversal of 4044932640 is 462394404.

4044932640 is a `hidden beast` number, since 4 + 0 + 4 + 4 + 9 + 3 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×4044932640² = 32722960124274739200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4044932595 and 4044932604.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 68427 + ... + 113013.

Almost surely, 2^4044932640 is an apocalyptic number.

4044932640 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 4044932640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8157463776).

4044932640 is an abundant number, since it is smaller than the sum of its proper divisors (12269994912).

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

4044932640 is a wasteful number, since it uses less digits than its factorization.

4044932640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44621 (or 44604 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4044932640 is about 63599.7849052967. The cubic root of 4044932640 is about 1593.3227771146.

The spelling of 4044932640 in words is "four billion, forty-four million, nine hundred thirty-two thousand, six hundred forty".