172324940 has 12 divisors (see below), whose sum is σ = 361882416. Its totient is φ = 68929968.

The previous prime is 172324921. The next prime is 172324961. The reversal of 172324940 is 49423271.

It is a junction number, because it is equal to n+sod(n) for n = 172324897 and 172324906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4308104 + ... + 4308143.

It is an arithmetic number, because the mean of its divisors is an integer number (30156868).

Almost surely, 2^172324940 is an apocalyptic number.

172324940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172324940 is an abundant number, since it is smaller than the sum of its proper divisors (189557476).

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

172324940 is a wasteful number, since it uses less digits than its factorization.

172324940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616256 (or 8616254 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 172324940 is about 13127.2594245715. The cubic root of 172324940 is about 556.4797672168.

The spelling of 172324940 in words is "one hundred seventy-two million, three hundred twenty-four thousand, nine hundred forty".