164505400 has 96 divisors (see below), whose sum is σ = 400755600. Its totient is φ = 62720000.

The previous prime is 164505391. The next prime is 164505403. The reversal of 164505400 is 4505461.

164505400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164505403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655275 + ... + 655525.

Almost surely, 2^164505400 is an apocalyptic number.

164505400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164505400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200377800).

164505400 is an abundant number, since it is smaller than the sum of its proper divisors (236250200).

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

164505400 is a wasteful number, since it uses less digits than its factorization.

164505400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 164505400 is about 12825.9658505705. The cubic root of 164505400 is about 547.9320692964.

The spelling of 164505400 in words is "one hundred sixty-four million, five hundred five thousand, four hundred".