172672040 has 32 divisors (see below), whose sum is σ = 405406080. Its totient is φ = 66065472.

The previous prime is 172672001. The next prime is 172672051. The reversal of 172672040 is 40276271.

172672040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172671994 and 172672012.

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, 92924 + ... + 94763.

It is an arithmetic number, because the mean of its divisors is an integer number (12668940).

Almost surely, 2^172672040 is an apocalyptic number.

172672040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172672040 is an abundant number, since it is smaller than the sum of its proper divisors (232734040).

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

172672040 is a wasteful number, since it uses less digits than its factorization.

172672040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187721 (or 187717 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 172672040 is about 13140.4733552487. The cubic root of 172672040 is about 556.8531405028.

The spelling of 172672040 in words is "one hundred seventy-two million, six hundred seventy-two thousand, forty".