30157344 has 108 divisors (see below), whose sum is σ = 99808254. Its totient is φ = 8612352.

The previous prime is 30157339. The next prime is 30157349. The reversal of 30157344 is 44375103.

It is an interprime number because it is at equal distance from previous prime (30157339) and next prime (30157349).

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 345744 = 5460^2 + 588^2 .

It is not an unprimeable number, because it can be changed into a prime (30157349) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13044 + ... + 15180.

Almost surely, 2^30157344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30157344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49904127).

30157344 is an abundant number, since it is smaller than the sum of its proper divisors (69650910).

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

30157344 is a wasteful number, since it uses less digits than its factorization.

30157344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30157344 is about 5491.5702672369. The cubic root of 30157344 is about 311.2655307487.

The spelling of 30157344 in words is "thirty million, one hundred fifty-seven thousand, three hundred forty-four".