249474548 has 12 divisors (see below), whose sum is σ = 436726752. Its totient is φ = 124695480.

The previous prime is 249474529. The next prime is 249474553. The reversal of 249474548 is 845474942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5783 + ... + 23073.

It is an arithmetic number, because the mean of its divisors is an integer number (36393896).

Almost surely, 2^249474548 is an apocalyptic number.

It is an amenable number.

249474548 is a deficient number, since it is larger than the sum of its proper divisors (187252204).

249474548 is a wasteful number, since it uses less digits than its factorization.

249474548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902 (or 20900 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The square root of 249474548 is about 15794.7633094010. The cubic root of 249474548 is about 629.5188633498.

The spelling of 249474548 in words is "two hundred forty-nine million, four hundred seventy-four thousand, five hundred forty-eight".