396418556 has 12 divisors (see below), whose sum is σ = 693898968. Its totient is φ = 198161712.

The previous prime is 396418553. The next prime is 396418559. The reversal of 396418556 is 655814693.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (396418553) and next prime (396418559).

It is a super-2 number, since 2×396418556² = 314295343082250272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 396418556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396418553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12350 + ... + 30746.

It is an arithmetic number, because the mean of its divisors is an integer number (57824914).

Almost surely, 2^396418556 is an apocalyptic number.

It is an amenable number.

396418556 is a deficient number, since it is larger than the sum of its proper divisors (297480412).

396418556 is a wasteful number, since it uses less digits than its factorization.

396418556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23788 (or 23786 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 396418556 is about 19910.2625798858. The cubic root of 396418556 is about 734.6006783959.

The spelling of 396418556 in words is "three hundred ninety-six million, four hundred eighteen thousand, five hundred fifty-six".