400328934 has 32 divisors (see below), whose sum is σ = 839639520. Its totient is φ = 127072512.

The previous prime is 400328927. The next prime is 400328959. The reversal of 400328934 is 439823004.

It is a junction number, because it is equal to n+sod(n) for n = 400328895 and 400328904.

It is a congruent 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, 3057 + ... + 28460.

It is an arithmetic number, because the mean of its divisors is an integer number (26238735).

Almost surely, 2^400328934 is an apocalyptic number.

400328934 is an abundant number, since it is smaller than the sum of its proper divisors (439310586).

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

400328934 is a wasteful number, since it uses less digits than its factorization.

400328934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31624.

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

The square root of 400328934 is about 20008.2216601076. The cubic root of 400328934 is about 737.0082115946.

The spelling of 400328934 in words is "four hundred million, three hundred twenty-eight thousand, nine hundred thirty-four".