400624465 has 16 divisors (see below), whose sum is σ = 531163008. Its totient is φ = 288530176.

The previous prime is 400624457. The next prime is 400624517. The reversal of 400624465 is 564426004.

It is a cyclic number.

It is not a de Polignac number, because 400624465 - 2³ = 400624457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100507 + ... + 104416.

It is an arithmetic number, because the mean of its divisors is an integer number (33197688).

Almost surely, 2^400624465 is an apocalyptic number.

It is an amenable number.

400624465 is a deficient number, since it is larger than the sum of its proper divisors (130538543).

400624465 is a wasteful number, since it uses less digits than its factorization.

400624465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204968.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 400624465 is about 20015.6055366806. The cubic root of 400624465 is about 737.1895251598.

The spelling of 400624465 in words is "four hundred million, six hundred twenty-four thousand, four hundred sixty-five".