172040896 has 28 divisors (see below), whose sum is σ = 359364280. Its totient is φ = 81492480.

The previous prime is 172040887. The next prime is 172040899. The reversal of 172040896 is 698040271.

It is not an unprimeable number, because it can be changed into a prime (172040899) 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, 69525 + ... + 71956.

Almost surely, 2^172040896 is an apocalyptic number.

172040896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172040896 is an abundant number, since it is smaller than the sum of its proper divisors (187323384).

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

172040896 is a wasteful number, since it uses less digits than its factorization.

172040896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141512 (or 141502 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 172040896 is about 13116.4361013196. The cubic root of 172040896 is about 556.1738496774.

The spelling of 172040896 in words is "one hundred seventy-two million, forty thousand, eight hundred ninety-six".