249774976 has 48 divisors (see below), whose sum is σ = 546981120. Its totient is φ = 113527040.

The previous prime is 249774961. The next prime is 249774977. The reversal of 249774976 is 679477942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249774977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7425 + ... + 23551.

It is an arithmetic number, because the mean of its divisors is an integer number (11395440).

Almost surely, 2^249774976 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 249774976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273490560).

249774976 is an abundant number, since it is smaller than the sum of its proper divisors (297206144).

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

249774976 is a wasteful number, since it uses less digits than its factorization.

249774976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16163 (or 16140 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 55.

The square root of 249774976 is about 15804.2708151942. The cubic root of 249774976 is about 629.7714598943.

The spelling of 249774976 in words is "two hundred forty-nine million, seven hundred seventy-four thousand, nine hundred seventy-six".