404056620 has 96 divisors (see below), whose sum is σ = 1371363840. Its totient is φ = 97951680.

The previous prime is 404056607. The next prime is 404056621. The reversal of 404056620 is 26650404.

It is a happy number.

404056620 is a `hidden beast` number, since 40 + 40 + 566 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (404056621) 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, 28072 + ... + 39951.

It is an arithmetic number, because the mean of its divisors is an integer number (14285040).

Almost surely, 2^404056620 is an apocalyptic number.

It is an amenable number.

404056620 is an abundant number, since it is smaller than the sum of its proper divisors (967307220).

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

404056620 is a wasteful number, since it uses less digits than its factorization.

404056620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68052 (or 68044 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 404056620 is about 20101.1596680391. The cubic root of 404056620 is about 739.2887126833.

The spelling of 404056620 in words is "four hundred four million, fifty-six thousand, six hundred twenty".