249450436 has 27 divisors (see below), whose sum is σ = 447936391. Its totient is φ = 121550624.

The previous prime is 249450391. The next prime is 249450451. The reversal of 249450436 is 634054942.

It is a happy number.

The square root of 249450436 is 15794.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10562500 + 238887936 = 3250^2 + 15456^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249450395 and 249450404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1674090 + ... + 1674238.

Almost surely, 2^249450436 is an apocalyptic number.

249450436 is the 15794-th square number.

It is an amenable number.

249450436 is a deficient number, since it is larger than the sum of its proper divisors (198485955).

249450436 is an equidigital number, since it uses as much as digits as its factorization.

249450436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The cubic root of 249450436 is about 629.4985814573.

The spelling of 249450436 in words is "two hundred forty-nine million, four hundred fifty thousand, four hundred thirty-six".