30172504 has 16 divisors (see below), whose sum is σ = 59033520. Its totient is φ = 14430240.

The previous prime is 30172489. The next prime is 30172507. The reversal of 30172504 is 40527103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30172507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81807 + ... + 82174.

It is an arithmetic number, because the mean of its divisors is an integer number (3689595).

Almost surely, 2^30172504 is an apocalyptic number.

It is an amenable number.

30172504 is a deficient number, since it is larger than the sum of its proper divisors (28861016).

30172504 is a wasteful number, since it uses less digits than its factorization.

30172504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164010 (or 164006 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30172504 is about 5492.9503911832. The cubic root of 30172504 is about 311.3176794057.

Adding to 30172504 its reverse (40527103), we get a palindrome (70699607).

The spelling of 30172504 in words is "thirty million, one hundred seventy-two thousand, five hundred four".