30137372 has 12 divisors (see below), whose sum is σ = 52778880. Its totient is φ = 15057696.

The previous prime is 30137357. The next prime is 30137389. The reversal of 30137372 is 27373103.

It is a happy number.

It is a super-2 number, since 2×30137372² = 1816522382132768, which contains 22 as substring.

It is a congruent number.

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, 9029 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (4398240).

Almost surely, 2^30137372 is an apocalyptic number.

It is an amenable number.

30137372 is a deficient number, since it is larger than the sum of its proper divisors (22641508).

30137372 is a wasteful number, since it uses less digits than its factorization.

30137372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500 (or 5498 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 30137372 is about 5489.7515426474. The cubic root of 30137372 is about 311.1968026801.

It can be divided in two parts, 301 and 37372, that added together give a palindrome (37673).

The spelling of 30137372 in words is "thirty million, one hundred thirty-seven thousand, three hundred seventy-two".