249990732 has 48 divisors (see below), whose sum is σ = 651571200. Its totient is φ = 82887120.

The previous prime is 249990731. The next prime is 249990743. The reversal of 249990732 is 237099942.

249990732 is a `hidden beast` number, since 2 + 499 + 90 + 73 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (249990731) 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, 14569 + ... + 26687.

It is an arithmetic number, because the mean of its divisors is an integer number (13574400).

Almost surely, 2^249990732 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 249990732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325785600).

249990732 is an abundant number, since it is smaller than the sum of its proper divisors (401580468).

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

249990732 is a wasteful number, since it uses less digits than its factorization.

249990732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323 (or 12315 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 249990732 is about 15811.0952182320. The cubic root of 249990732 is about 629.9527402190.

The spelling of 249990732 in words is "two hundred forty-nine million, nine hundred ninety thousand, seven hundred thirty-two".