172887040 has 44 divisors (see below), whose sum is σ = 414738576. Its totient is φ = 69152768.

The previous prime is 172887019. The next prime is 172887041. The reversal of 172887040 is 40788271.

It is not an unprimeable number, because it can be changed into a prime (172887041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11764 + ... + 22003.

Almost surely, 2^172887040 is an apocalyptic number.

172887040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172887040 is an abundant number, since it is smaller than the sum of its proper divisors (241851536).

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

172887040 is an equidigital number, since it uses as much as digits as its factorization.

172887040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33792 (or 33774 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 172887040 is about 13148.6516418985. The cubic root of 172887040 is about 557.0841637554.

The spelling of 172887040 in words is "one hundred seventy-two million, eight hundred eighty-seven thousand, forty".