249689088 has 176 divisors, whose sum is σ = 807664320. Its totient is φ = 75571200.

The previous prime is 249689071. The next prime is 249689113. The reversal of 249689088 is 880986942.

It is a tau number, because it is divible by the number of its divisors (176).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303718 + ... + 304538.

Almost surely, 2^249689088 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 249689088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403832160).

249689088 is an abundant number, since it is smaller than the sum of its proper divisors (557975232).

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

249689088 is a wasteful number, since it uses less digits than its factorization.

249689088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 249689088 is about 15801.5533413649. The cubic root of 249689088 is about 629.6992668975.

The spelling of 249689088 in words is "two hundred forty-nine million, six hundred eighty-nine thousand, eighty-eight".