3996556404 has 24 divisors (see below), whose sum is σ = 9453044160. Its totient is φ = 1313936064.

The previous prime is 3996556397. The next prime is 3996556409. The reversal of 3996556404 is 4046556993.

It is a super-2 number, since 2×3996556404² = 31944926180706822432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996556409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2280264 + ... + 2282015.

It is an arithmetic number, because the mean of its divisors is an integer number (393876840).

Almost surely, 2^3996556404 is an apocalyptic number.

It is an amenable number.

3996556404 is an abundant number, since it is smaller than the sum of its proper divisors (5456487756).

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

3996556404 is a wasteful number, since it uses less digits than its factorization.

3996556404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562359 (or 4562357 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 51.

The square root of 3996556404 is about 63218.3233248083. The cubic root of 3996556404 is about 1586.9453905243.

It can be divided in two parts, 39965 and 56404, that added together give a palindrome (96369).

The spelling of 3996556404 in words is "three billion, nine hundred ninety-six million, five hundred fifty-six thousand, four hundred four".