400575036 has 24 divisors (see below), whose sum is σ = 935297104. Its totient is φ = 133436160.

The previous prime is 400575023. The next prime is 400575041. The reversal of 400575036 is 630575004.

It is a junction number, because it is equal to n+sod(n) for n = 400574994 and 400575012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9156 + ... + 29748.

Almost surely, 2^400575036 is an apocalyptic number.

It is an amenable number.

400575036 is an abundant number, since it is smaller than the sum of its proper divisors (534722068).

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

400575036 is a wasteful number, since it uses less digits than its factorization.

400575036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22221 (or 22219 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 400575036 is about 20014.3707370479. The cubic root of 400575036 is about 737.1592057935.

The spelling of 400575036 in words is "four hundred million, five hundred seventy-five thousand, thirty-six".