400162164 has 12 divisors (see below), whose sum is σ = 933711744. Its totient is φ = 133387384.

The previous prime is 400162121. The next prime is 400162181. The reversal of 400162164 is 461261004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 16673412 + ... + 16673435.

It is an arithmetic number, because the mean of its divisors is an integer number (77809312).

Almost surely, 2^400162164 is an apocalyptic number.

It is an amenable number.

400162164 is an abundant number, since it is smaller than the sum of its proper divisors (533549580).

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

400162164 is a wasteful number, since it uses less digits than its factorization.

400162164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33346854 (or 33346852 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 400162164 is about 20004.0536891901. The cubic root of 400162164 is about 736.9058558229.

The spelling of 400162164 in words is "four hundred million, one hundred sixty-two thousand, one hundred sixty-four".