249072874 has 16 divisors (see below), whose sum is σ = 379118880. Its totient is φ = 122708080.

The previous prime is 249072853. The next prime is 249072913. The reversal of 249072874 is 478270942.

It is a self number, because there is not a number n which added to its sum of digits gives 249072874.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67764 + ... + 71344.

It is an arithmetic number, because the mean of its divisors is an integer number (23694930).

Almost surely, 2^249072874 is an apocalyptic number.

249072874 is a deficient number, since it is larger than the sum of its proper divisors (130046006).

249072874 is a wasteful number, since it uses less digits than its factorization.

249072874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 249072874 is about 15782.0427701866. The cubic root of 249072874 is about 629.1808232672.

The spelling of 249072874 in words is "two hundred forty-nine million, seventy-two thousand, eight hundred seventy-four".