249999472 has 20 divisors (see below), whose sum is σ = 492316456. Its totient is φ = 122950080.

The previous prime is 249999367. The next prime is 249999481. The reversal of 249999472 is 274999942.

249999472 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127098 + ... + 129049.

Almost surely, 2^249999472 is an apocalyptic number.

It is an amenable number.

249999472 is a deficient number, since it is larger than the sum of its proper divisors (242316984).

249999472 is a wasteful number, since it uses less digits than its factorization.

249999472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256216 (or 256210 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 55.

The square root of 249999472 is about 15811.3716040070. The cubic root of 249999472 is about 629.9600814549.

The spelling of 249999472 in words is "two hundred forty-nine million, nine hundred ninety-nine thousand, four hundred seventy-two".