249228424 has 16 divisors (see below), whose sum is σ = 473705820. Its totient is φ = 122906880.

The previous prime is 249228403. The next prime is 249228431. The reversal of 249228424 is 424822942.

It can be written as a sum of positive squares in 2 ways, for example, as 236852100 + 12376324 = 15390^2 + 3518^2 .

It is a super-2 number, since 2×249228424² = 124229614659047552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212797 + ... + 213964.

Almost surely, 2^249228424 is an apocalyptic number.

It is an amenable number.

249228424 is a deficient number, since it is larger than the sum of its proper divisors (224477396).

249228424 is a wasteful number, since it uses less digits than its factorization.

249228424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426840 (or 426836 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 249228424 is about 15786.9700702826. The cubic root of 249228424 is about 629.3117738453.

The spelling of 249228424 in words is "two hundred forty-nine million, two hundred twenty-eight thousand, four hundred twenty-four".