30157258 has 8 divisors (see below), whose sum is σ = 45261252. Its totient is φ = 15070176.

The previous prime is 30157247. The next prime is 30157261. The reversal of 30157258 is 85275103.

It can be written as a sum of positive squares in 2 ways, for example, as 28804689 + 1352569 = 5367^2 + 1163^2 .

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, 2166 + ... + 8062.

Almost surely, 2^30157258 is an apocalyptic number.

30157258 is a deficient number, since it is larger than the sum of its proper divisors (15103994).

30157258 is a wasteful number, since it uses less digits than its factorization.

30157258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 30157258 is about 5491.5624370483. The cubic root of 30157258 is about 311.2652348688.

The spelling of 30157258 in words is "thirty million, one hundred fifty-seven thousand, two hundred fifty-eight".