172024385 has 16 divisors (see below), whose sum is σ = 234010560. Its totient is φ = 120346560.

The previous prime is 172024367. The next prime is 172024387. The reversal of 172024385 is 583420271.

It is not a de Polignac number, because 172024385 - 2⁸ = 172024129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172024387) 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, 68411 + ... + 70880.

It is an arithmetic number, because the mean of its divisors is an integer number (14625660).

Almost surely, 2^172024385 is an apocalyptic number.

It is an amenable number.

172024385 is a deficient number, since it is larger than the sum of its proper divisors (61986175).

172024385 is a wasteful number, since it uses less digits than its factorization.

172024385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139328.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 172024385 is about 13115.8066850652. The cubic root of 172024385 is about 556.1560568532.

The spelling of 172024385 in words is "one hundred seventy-two million, twenty-four thousand, three hundred eighty-five".