164625400 has 24 divisors (see below), whose sum is σ = 382754520. Its totient is φ = 65850080.

The previous prime is 164625389. The next prime is 164625403. The reversal of 164625400 is 4526461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164625403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411364 + ... + 411763.

It is an arithmetic number, because the mean of its divisors is an integer number (15948105).

Almost surely, 2^164625400 is an apocalyptic number.

164625400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164625400 is an abundant number, since it is smaller than the sum of its proper divisors (218129120).

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

164625400 is a wasteful number, since it uses less digits than its factorization.

164625400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823143 (or 823134 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 164625400 is about 12830.6430080491. The cubic root of 164625400 is about 548.0652683019.

It can be divided in two parts, 164625 and 400, that added together give a triangular number (165025 = T₅₇₄).

The spelling of 164625400 in words is "one hundred sixty-four million, six hundred twenty-five thousand, four hundred".