400403364 has 24 divisors (see below), whose sum is σ = 947435328. Its totient is φ = 131587680.

The previous prime is 400403351. The next prime is 400403411. The reversal of 400403364 is 463304004.

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, 234127 + ... + 235830.

It is an arithmetic number, because the mean of its divisors is an integer number (39476472).

Almost surely, 2^400403364 is an apocalyptic number.

It is an amenable number.

400403364 is an abundant number, since it is smaller than the sum of its proper divisors (547031964).

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

400403364 is a wasteful number, since it uses less digits than its factorization.

400403364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470035 (or 470033 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 400403364 is about 20010.0815590542. The cubic root of 400403364 is about 737.0538841381.

Adding to 400403364 its reverse (463304004), we get a palindrome (863707368).

The spelling of 400403364 in words is "four hundred million, four hundred three thousand, three hundred sixty-four".