249903281244 has 48 divisors (see below), whose sum is σ = 618630656000. Its totient is φ = 78295424256.

The previous prime is 249903281227. The next prime is 249903281249. The reversal of 249903281244 is 442182309942.

It is a junction number, because it is equal to n+sod(n) for n = 249903281193 and 249903281202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249903281249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4286269 + ... + 4344180.

Almost surely, 2^249903281244 is an apocalyptic number.

It is an amenable number.

249903281244 is an abundant number, since it is smaller than the sum of its proper divisors (368727374756).

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

249903281244 is a wasteful number, since it uses less digits than its factorization.

249903281244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8630602 (or 8630600 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 249903281244 in words is "two hundred forty-nine billion, nine hundred three million, two hundred eighty-one thousand, two hundred forty-four".