249444888 has 144 divisors (see below), whose sum is σ = 797824440. Its totient is φ = 64753920.

The previous prime is 249444887. The next prime is 249444889. The reversal of 249444888 is 888444942.

It is an interprime number because it is at equal distance from previous prime (249444887) and next prime (249444889).

It is a self number, because there is not a number n which added to its sum of digits gives 249444888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249444887) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 141420 + ... + 143172.

Almost surely, 2^249444888 is an apocalyptic number.

249444888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249444888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398912220).

249444888 is an abundant number, since it is smaller than the sum of its proper divisors (548379552).

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

249444888 is a wasteful number, since it uses less digits than its factorization.

249444888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1776 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 249444888 is about 15793.8243627058. The cubic root of 249444888 is about 629.4939145529.

The spelling of 249444888 in words is "two hundred forty-nine million, four hundred forty-four thousand, eight hundred eighty-eight".