249689488 has 40 divisors (see below), whose sum is σ = 511038720. Its totient is φ = 117855360.

The previous prime is 249689483. The next prime is 249689497. The reversal of 249689488 is 884986942.

It is not an unprimeable number, because it can be changed into a prime (249689483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95073 + ... + 97663.

It is an arithmetic number, because the mean of its divisors is an integer number (12775968).

Almost surely, 2^249689488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249689488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255519360).

249689488 is an abundant number, since it is smaller than the sum of its proper divisors (261349232).

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

249689488 is a wasteful number, since it uses less digits than its factorization.

249689488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935 (or 2929 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 58.

The square root of 249689488 is about 15801.5659983433. The cubic root of 249689488 is about 629.6996031551.

The spelling of 249689488 in words is "two hundred forty-nine million, six hundred eighty-nine thousand, four hundred eighty-eight".