249999498 has 24 divisors (see below), whose sum is σ = 619046688. Its totient is φ = 71428392.

The previous prime is 249999481. The next prime is 249999539. The reversal of 249999498 is 894999942.

249999498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 991936 + ... + 992187.

It is an arithmetic number, because the mean of its divisors is an integer number (25793612).

Almost surely, 2^249999498 is an apocalyptic number.

249999498 is an abundant number, since it is smaller than the sum of its proper divisors (369047190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249999498 is a wasteful number, since it uses less digits than its factorization.

249999498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984138 (or 1984135 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 249999498 is about 15811.3724262001. The cubic root of 249999498 is about 629.9601032936.

The spelling of 249999498 in words is "two hundred forty-nine million, nine hundred ninety-nine thousand, four hundred ninety-eight".