172124424 has 24 divisors (see below), whose sum is σ = 466170510. Its totient is φ = 57374784.

The previous prime is 172124411. The next prime is 172124467. The reversal of 172124424 is 424421271.

172124424 is a `hidden beast` number, since 1 + 7 + 212 + 442 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109872324 + 62252100 = 10482^2 + 7890^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1195237 + ... + 1195380.

Almost surely, 2^172124424 is an apocalyptic number.

It is an amenable number.

172124424 is an abundant number, since it is smaller than the sum of its proper divisors (294046086).

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

172124424 is a wasteful number, since it uses less digits than its factorization.

172124424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390629 (or 2390622 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 172124424 is about 13119.6198115647. The cubic root of 172124424 is about 556.2638448938.

Adding to 172124424 its reverse (424421271), we get a palindrome (596545695).

The spelling of 172124424 in words is "one hundred seventy-two million, one hundred twenty-four thousand, four hundred twenty-four".