30187252 has 24 divisors (see below), whose sum is σ = 54385856. Its totient is φ = 14655168.

The previous prime is 30187249. The next prime is 30187303. The reversal of 30187252 is 25278103.

It is a super-2 number, since 2×30187252² = 1822540366623008, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30187252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18793 + ... + 20335.

Almost surely, 2^30187252 is an apocalyptic number.

It is an amenable number.

30187252 is a deficient number, since it is larger than the sum of its proper divisors (24198604).

30187252 is a wasteful number, since it uses less digits than its factorization.

30187252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30187252 is about 5494.2926751312. The cubic root of 30187252 is about 311.3683940704.

The spelling of 30187252 in words is "thirty million, one hundred eighty-seven thousand, two hundred fifty-two".