249987074 has 8 divisors (see below), whose sum is σ = 397038348. Its totient is φ = 117640960.

The previous prime is 249987053. The next prime is 249987097. The reversal of 249987074 is 470789942.

It can be written as a sum of positive squares in 2 ways, for example, as 240033049 + 9954025 = 15493^2 + 3155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 3676247 + ... + 3676314.

Almost surely, 2^249987074 is an apocalyptic number.

249987074 is a deficient number, since it is larger than the sum of its proper divisors (147051274).

249987074 is a wasteful number, since it uses less digits than its factorization.

249987074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352580.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 249987074 is about 15810.9795395478. The cubic root of 249987074 is about 629.9496676007.

The spelling of 249987074 in words is "two hundred forty-nine million, nine hundred eighty-seven thousand, seventy-four".