30860249 has 12 divisors (see below), whose sum is σ = 36776628. Its totient is φ = 25804800.

The previous prime is 30860243. The next prime is 30860279. The reversal of 30860249 is 94206803.

It can be written as a sum of positive squares in 2 ways, for example, as 11102224 + 19758025 = 3332^2 + 4445^2 .

It is not a de Polignac number, because 30860249 - 2⁴ = 30860233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30860243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5672 + ... + 9689.

It is an arithmetic number, because the mean of its divisors is an integer number (3064719).

Almost surely, 2^30860249 is an apocalyptic number.

It is an amenable number.

30860249 is a deficient number, since it is larger than the sum of its proper divisors (5916379).

30860249 is a wasteful number, since it uses less digits than its factorization.

30860249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15416 (or 15409 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30860249 is about 5555.2001764113. The cubic root of 30860249 is about 313.6652991679.

The spelling of 30860249 in words is "thirty million, eight hundred sixty thousand, two hundred forty-nine".