172424636 has 12 divisors (see below), whose sum is σ = 305993520. Its totient is φ = 84997920.

The previous prime is 172424621. The next prime is 172424653. The reversal of 172424636 is 636424271.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 172424596 and 172424605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303281 + ... + 303848.

It is an arithmetic number, because the mean of its divisors is an integer number (25499460).

Almost surely, 2^172424636 is an apocalyptic number.

It is an amenable number.

172424636 is a deficient number, since it is larger than the sum of its proper divisors (133568884).

172424636 is a wasteful number, since it uses less digits than its factorization.

172424636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607204 (or 607202 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 172424636 is about 13131.0561646807. The cubic root of 172424636 is about 556.5870608593.

The spelling of 172424636 in words is "one hundred seventy-two million, four hundred twenty-four thousand, six hundred thirty-six".