249870033 has 24 divisors (see below), whose sum is σ = 422081088. Its totient is φ = 139460832.

The previous prime is 249870017. The next prime is 249870077. The reversal of 249870033 is 330078942.

It is not a de Polignac number, because 249870033 - 2⁴ = 249870017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249870033.

It is not an unprimeable number, because it can be changed into a prime (249870833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43410 + ... + 48827.

It is an arithmetic number, because the mean of its divisors is an integer number (17586712).

Almost surely, 2^249870033 is an apocalyptic number.

It is an amenable number.

249870033 is a deficient number, since it is larger than the sum of its proper divisors (172211055).

249870033 is a wasteful number, since it uses less digits than its factorization.

249870033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92293 (or 92290 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 249870033 is about 15807.2778491428. The cubic root of 249870033 is about 629.8513405854.

The spelling of 249870033 in words is "two hundred forty-nine million, eight hundred seventy thousand, thirty-three".