30057942 has 16 divisors (see below), whose sum is σ = 61013952. Its totient is φ = 9869640.

The previous prime is 30057931. The next prime is 30057953. The reversal of 30057942 is 24975003.

It is an interprime number because it is at equal distance from previous prime (30057931) and next prime (30057953).

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, 36984 + ... + 37787.

It is an arithmetic number, because the mean of its divisors is an integer number (3813372).

Almost surely, 2^30057942 is an apocalyptic number.

30057942 is an abundant number, since it is smaller than the sum of its proper divisors (30956010).

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

30057942 is a wasteful number, since it uses less digits than its factorization.

30057942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74843.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 30057942 is about 5482.5123802870. The cubic root of 30057942 is about 310.9231655740.

The spelling of 30057942 in words is "thirty million, fifty-seven thousand, nine hundred forty-two".