249996744 has 24 divisors (see below), whose sum is σ = 677074710. Its totient is φ = 83332224.

The previous prime is 249996697. The next prime is 249996757. The reversal of 249996744 is 447699942.

It can be written as a sum of positive squares in only one way, i.e., 222308100 + 27688644 = 14910^2 + 5262^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1736017 + ... + 1736160.

Almost surely, 2^249996744 is an apocalyptic number.

249996744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

249996744 is an abundant number, since it is smaller than the sum of its proper divisors (427077966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249996744 is a wasteful number, since it uses less digits than its factorization.

249996744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472189 (or 3472182 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 249996744 is about 15811.2853367460. The cubic root of 249996744 is about 629.9577900669.

The spelling of 249996744 in words is "two hundred forty-nine million, nine hundred ninety-six thousand, seven hundred forty-four".