400574970 has 80 divisors (see below), whose sum is σ = 1114308360. Its totient is φ = 103130496.

The previous prime is 400574959. The next prime is 400575001. The reversal of 400574970 is 79475004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 302029641 + 98545329 = 17379^2 + 9927^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14964 + ... + 32016.

Almost surely, 2^400574970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400574970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557154180).

400574970 is an abundant number, since it is smaller than the sum of its proper divisors (713733390).

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

400574970 is a wasteful number, since it uses less digits than its factorization.

400574970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17101 (or 17092 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 400574970 is about 20014.3690882326. The cubic root of 400574970 is about 737.1591653079.

The spelling of 400574970 in words is "four hundred million, five hundred seventy-four thousand, nine hundred seventy".