249816452 has 12 divisors (see below), whose sum is σ = 448994700. Its totient is φ = 121532256.

The previous prime is 249816449. The next prime is 249816473. The reversal of 249816452 is 254618942.

It can be written as a sum of positive squares in 2 ways, for example, as 136095556 + 113720896 = 11666^2 + 10664^2 .

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, 843827 + ... + 844122.

It is an arithmetic number, because the mean of its divisors is an integer number (37416225).

Almost surely, 2^249816452 is an apocalyptic number.

It is an amenable number.

249816452 is a deficient number, since it is larger than the sum of its proper divisors (199178248).

249816452 is a wasteful number, since it uses less digits than its factorization.

249816452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687990 (or 1687988 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 249816452 is about 15805.5829376838. The cubic root of 249816452 is about 629.8063165425.

The spelling of 249816452 in words is "two hundred forty-nine million, eight hundred sixteen thousand, four hundred fifty-two".