404157020 has 12 divisors (see below), whose sum is σ = 848729784. Its totient is φ = 161662800.

The previous prime is 404156993. The next prime is 404157041. The reversal of 404157020 is 20751404.

404157020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10103906 + ... + 10103945.

It is an arithmetic number, because the mean of its divisors is an integer number (70727482).

Almost surely, 2^404157020 is an apocalyptic number.

It is an amenable number.

404157020 is an abundant number, since it is smaller than the sum of its proper divisors (444572764).

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

404157020 is a wasteful number, since it uses less digits than its factorization.

404157020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20207860 (or 20207858 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 404157020 is about 20103.6568812741. The cubic root of 404157020 is about 739.3499404388.

The spelling of 404157020 in words is "four hundred four million, one hundred fifty-seven thousand, twenty".