30157224 has 32 divisors (see below), whose sum is σ = 75657120. Its totient is φ = 10017216.

The previous prime is 30157217. The next prime is 30157229. The reversal of 30157224 is 42275103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 30157194 and 30157203.

It is not an unprimeable number, because it can be changed into a prime (30157229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5322 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (2364285).

Almost surely, 2^30157224 is an apocalyptic number.

It is an amenable number.

30157224 is an abundant number, since it is smaller than the sum of its proper divisors (45499896).

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

30157224 is a wasteful number, since it uses less digits than its factorization.

30157224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409 (or 4405 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 30157224 is about 5491.5593413893. The cubic root of 30157224 is about 311.2651178928.

It can be divided in two parts, 30157 and 224, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 30157224 in words is "thirty million, one hundred fifty-seven thousand, two hundred twenty-four".