249774974 has 16 divisors (see below), whose sum is σ = 379119312. Its totient is φ = 123408768.

The previous prime is 249774961. The next prime is 249774977. The reversal of 249774974 is 479477942.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82817 + ... + 85779.

It is an arithmetic number, because the mean of its divisors is an integer number (23694957).

Almost surely, 2^249774974 is an apocalyptic number.

249774974 is a deficient number, since it is larger than the sum of its proper divisors (129344338).

249774974 is a wasteful number, since it uses less digits than its factorization.

249774974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451.

The product of its digits is 3556224, while the sum is 53.

The square root of 249774974 is about 15804.2707519202. The cubic root of 249774974 is about 629.7714582134.

The spelling of 249774974 in words is "two hundred forty-nine million, seven hundred seventy-four thousand, nine hundred seventy-four".