30657442 has 8 divisors (see below), whose sum is σ = 46964736. Its totient is φ = 15002532.

The previous prime is 30657433. The next prime is 30657457. The reversal of 30657442 is 24475603.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 162978 + ... + 163165.

It is an arithmetic number, because the mean of its divisors is an integer number (5870592).

Almost surely, 2^30657442 is an apocalyptic number.

30657442 is a deficient number, since it is larger than the sum of its proper divisors (16307294).

30657442 is a wasteful number, since it uses less digits than its factorization.

30657442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326192.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 30657442 is about 5536.9162897772. The cubic root of 30657442 is about 312.9766745573.

The spelling of 30657442 in words is "thirty million, six hundred fifty-seven thousand, four hundred forty-two".