249997492 has 12 divisors (see below), whose sum is σ = 437645376. Its totient is φ = 124955960.

The previous prime is 249997481. The next prime is 249997499. The reversal of 249997492 is 294799942.

249997492 is digitally balanced in base 3, 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 (249997499) 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, 5013 + ... + 22915.

It is an arithmetic number, because the mean of its divisors is an integer number (36470448).

Almost surely, 2^249997492 is an apocalyptic number.

It is an amenable number.

249997492 is a deficient number, since it is larger than the sum of its proper divisors (187647884).

249997492 is a wasteful number, since it uses less digits than its factorization.

249997492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21398 (or 21396 counting only the distinct ones).

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

The square root of 249997492 is about 15811.3089907193. The cubic root of 249997492 is about 629.9584183524.

The spelling of 249997492 in words is "two hundred forty-nine million, nine hundred ninety-seven thousand, four hundred ninety-two".