400455006 has 16 divisors (see below), whose sum is σ = 915325824. Its totient is φ = 114415704.

The previous prime is 400454983. The next prime is 400455019. The reversal of 400455006 is 600554004.

It is a Curzon number.

It is a congruent number.

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, 4767280 + ... + 4767363.

It is an arithmetic number, because the mean of its divisors is an integer number (57207864).

Almost surely, 2^400455006 is an apocalyptic number.

400455006 is an abundant number, since it is smaller than the sum of its proper divisors (514870818).

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

400455006 is a wasteful number, since it uses less digits than its factorization.

400455006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534655.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 400455006 is about 20011.3719169876. The cubic root of 400455006 is about 737.0855699362.

The spelling of 400455006 in words is "four hundred million, four hundred fifty-five thousand, six".