172492330 has 32 divisors (see below), whose sum is σ = 319107600. Its totient is φ = 67092480.

The previous prime is 172492321. The next prime is 172492337. The reversal of 172492330 is 33294271.

It can be written as a sum of positive squares in 8 ways, for example, as 7601049 + 164891281 = 2757^2 + 12841^2 .

It is a junction number, because it is equal to n+sod(n) for n = 172492292 and 172492301.

It is not an unprimeable number, because it can be changed into a prime (172492337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183622 + ... + 184558.

Almost surely, 2^172492330 is an apocalyptic number.

172492330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172492330 is a deficient number, since it is larger than the sum of its proper divisors (146615270).

172492330 is a wasteful number, since it uses less digits than its factorization.

172492330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 172492330 is about 13133.6335414081. The cubic root of 172492330 is about 556.6598901171.

The spelling of 172492330 in words is "one hundred seventy-two million, four hundred ninety-two thousand, three hundred thirty".