172235460 has 24 divisors (see below), whose sum is σ = 482259456. Its totient is φ = 45929440.

The previous prime is 172235443. The next prime is 172235471. The reversal of 172235460 is 64532271.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435236 + ... + 1435355.

It is an arithmetic number, because the mean of its divisors is an integer number (20094144).

Almost surely, 2^172235460 is an apocalyptic number.

172235460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172235460 is an abundant number, since it is smaller than the sum of its proper divisors (310023996).

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

172235460 is a wasteful number, since it uses less digits than its factorization.

172235460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870603 (or 2870601 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 172235460 is about 13123.8508068326. The cubic root of 172235460 is about 556.3834328720.

The spelling of 172235460 in words is "one hundred seventy-two million, two hundred thirty-five thousand, four hundred sixty".