164897400 has 48 divisors (see below), whose sum is σ = 511183800. Its totient is φ = 43972480.

The previous prime is 164897387. The next prime is 164897407. The reversal of 164897400 is 4798461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164897407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136815 + ... + 138014.

Almost surely, 2^164897400 is an apocalyptic number.

164897400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164897400 is an abundant number, since it is smaller than the sum of its proper divisors (346286400).

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

164897400 is a wasteful number, since it uses less digits than its factorization.

164897400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274848 (or 274839 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 164897400 is about 12841.2382580497. The cubic root of 164897400 is about 548.3669465900.

The spelling of 164897400 in words is "one hundred sixty-four million, eight hundred ninety-seven thousand, four hundred".