400469064 has 16 divisors (see below), whose sum is σ = 1001172720. Its totient is φ = 133489680.

The previous prime is 400469053. The next prime is 400469071. The reversal of 400469064 is 460964004.

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, 8343082 + ... + 8343129.

It is an arithmetic number, because the mean of its divisors is an integer number (62573295).

Almost surely, 2^400469064 is an apocalyptic number.

It is an amenable number.

400469064 is an abundant number, since it is smaller than the sum of its proper divisors (600703656).

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

400469064 is a wasteful number, since it uses less digits than its factorization.

400469064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16686220 (or 16686216 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 400469064 is about 20011.7231641855. The cubic root of 400469064 is about 737.0941949814.

The spelling of 400469064 in words is "four hundred million, four hundred sixty-nine thousand, sixty-four".