172192040 has 32 divisors (see below), whose sum is σ = 392895360. Its totient is φ = 67905600.

The previous prime is 172192021. The next prime is 172192103. The reversal of 172192040 is 40291271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27476 + ... + 33155.

It is an arithmetic number, because the mean of its divisors is an integer number (12277980).

Almost surely, 2^172192040 is an apocalyptic number.

172192040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172192040 is an abundant number, since it is smaller than the sum of its proper divisors (220703320).

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

172192040 is a wasteful number, since it uses less digits than its factorization.

172192040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60713 (or 60709 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 172192040 is about 13122.1964624829. The cubic root of 172192040 is about 556.3366747906.

The spelling of 172192040 in words is "one hundred seventy-two million, one hundred ninety-two thousand, forty".