30702249 has 6 divisors (see below), whose sum is σ = 44347706. Its totient is φ = 20468160.

The previous prime is 30702239. The next prime is 30702251. The reversal of 30702249 is 94220703.

It can be written as a sum of positive squares in only one way, i.e., 30603024 + 99225 = 5532^2 + 315^2 .

It is not a de Polignac number, because 30702249 - 2¹⁵ = 30669481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30702209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1705672 + ... + 1705689.

Almost surely, 2^30702249 is an apocalyptic number.

It is an amenable number.

30702249 is a deficient number, since it is larger than the sum of its proper divisors (13645457).

30702249 is a wasteful number, since it uses less digits than its factorization.

30702249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411367 (or 3411364 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30702249 is about 5540.9610177297. The cubic root of 30702249 is about 313.1290760462.

The spelling of 30702249 in words is "thirty million, seven hundred two thousand, two hundred forty-nine".