172404260 has 24 divisors (see below), whose sum is σ = 413770560. Its totient is φ = 59109984.

The previous prime is 172404241. The next prime is 172404263. The reversal of 172404260 is 62404271.

It is a super-2 number, since 2×172404260² = 59446457732295200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172404263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615590 + ... + 615869.

It is an arithmetic number, because the mean of its divisors is an integer number (17240440).

Almost surely, 2^172404260 is an apocalyptic number.

172404260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172404260 is an abundant number, since it is smaller than the sum of its proper divisors (241366300).

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

172404260 is a wasteful number, since it uses less digits than its factorization.

172404260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231475 (or 1231473 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 172404260 is about 13130.2802711899. The cubic root of 172404260 is about 556.5651354064.

The spelling of 172404260 in words is "one hundred seventy-two million, four hundred four thousand, two hundred sixty".