172044004 has 12 divisors (see below), whose sum is σ = 328447728. Its totient is φ = 78201800.

The previous prime is 172043999. The next prime is 172044011. The reversal of 172044004 is 400440271.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1955002 + ... + 1955089.

It is an arithmetic number, because the mean of its divisors is an integer number (27370644).

Almost surely, 2^172044004 is an apocalyptic number.

It is an amenable number.

172044004 is a deficient number, since it is larger than the sum of its proper divisors (156403724).

172044004 is a wasteful number, since it uses less digits than its factorization.

172044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910106 (or 3910104 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 172044004 is about 13116.5545780895. The cubic root of 172044004 is about 556.1771988383.

Adding to 172044004 its reverse (400440271), we get a palindrome (572484275).

The spelling of 172044004 in words is "one hundred seventy-two million, forty-four thousand, four".