249045628 has 12 divisors (see below), whose sum is σ = 469355320. Its totient is φ = 114944112.

The previous prime is 249045623. The next prime is 249045677. The reversal of 249045628 is 826540942.

249045628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249045623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394618 + ... + 2394721.

Almost surely, 2^249045628 is an apocalyptic number.

It is an amenable number.

249045628 is a deficient number, since it is larger than the sum of its proper divisors (220309692).

249045628 is a wasteful number, since it uses less digits than its factorization.

249045628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789356 (or 4789354 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 249045628 is about 15781.1795503378. The cubic root of 249045628 is about 629.1578804693.

The spelling of 249045628 in words is "two hundred forty-nine million, forty-five thousand, six hundred twenty-eight".