172642764 has 48 divisors (see below), whose sum is σ = 471097088. Its totient is φ = 48178368.

The previous prime is 172642753. The next prime is 172642781. The reversal of 172642764 is 467246271.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20287 + ... + 27510.

Almost surely, 2^172642764 is an apocalyptic number.

172642764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

172642764 is an abundant number, since it is smaller than the sum of its proper divisors (298454324).

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

172642764 is a wasteful number, since it uses less digits than its factorization.

172642764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47854 (or 47852 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 172642764 is about 13139.3593451127. The cubic root of 172642764 is about 556.8216678259.

The spelling of 172642764 in words is "one hundred seventy-two million, six hundred forty-two thousand, seven hundred sixty-four".