400150164 has 12 divisors (see below), whose sum is σ = 933683744. Its totient is φ = 133383384.

The previous prime is 400150133. The next prime is 400150169. The reversal of 400150164 is 461051004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 400150164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400150169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16672912 + ... + 16672935.

Almost surely, 2^400150164 is an apocalyptic number.

It is an amenable number.

400150164 is an abundant number, since it is smaller than the sum of its proper divisors (533533580).

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

400150164 is a wasteful number, since it uses less digits than its factorization.

400150164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33345854 (or 33345852 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 400150164 is about 20003.7537477344. The cubic root of 400150164 is about 736.8984896770.

The spelling of 400150164 in words is "four hundred million, one hundred fifty thousand, one hundred sixty-four".