249440744 has 16 divisors (see below), whose sum is σ = 534516000. Its totient is φ = 106903152.

The previous prime is 249440699. The next prime is 249440749. The reversal of 249440744 is 447044942.

It is a junction number, because it is equal to n+sod(n) for n = 249440698 and 249440707.

It is not an unprimeable number, because it can be changed into a prime (249440749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2227094 + ... + 2227205.

It is an arithmetic number, because the mean of its divisors is an integer number (33407250).

Almost surely, 2^249440744 is an apocalyptic number.

It is an amenable number.

249440744 is an abundant number, since it is smaller than the sum of its proper divisors (285075256).

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

249440744 is a wasteful number, since it uses less digits than its factorization.

249440744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454312 (or 4454308 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 249440744 is about 15793.6931716429. The cubic root of 249440744 is about 629.4904286296.

The spelling of 249440744 in words is "two hundred forty-nine million, four hundred forty thousand, seven hundred forty-four".