30125424 has 40 divisors (see below), whose sum is σ = 88942720. Its totient is φ = 8607168.

The previous prime is 30125383. The next prime is 30125429. The reversal of 30125424 is 42452103.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30125424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44494 + ... + 45165.

It is an arithmetic number, because the mean of its divisors is an integer number (2223568).

Almost surely, 2^30125424 is an apocalyptic number.

It is an amenable number.

30125424 is an abundant number, since it is smaller than the sum of its proper divisors (58817296).

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

30125424 is a wasteful number, since it uses less digits than its factorization.

30125424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89677 (or 89671 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30125424 is about 5488.6632252307. The cubic root of 30125424 is about 311.1556724530.

Adding to 30125424 its reverse (42452103), we get a palindrome (72577527).

The spelling of 30125424 in words is "thirty million, one hundred twenty-five thousand, four hundred twenty-four".