249828858 has 24 divisors (see below), whose sum is σ = 542860500. Its totient is φ = 83035584.

The previous prime is 249828857. The next prime is 249828911. The reversal of 249828858 is 858828942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 248157009 + 1671849 = 15753^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (249828857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13603 + ... + 26166.

Almost surely, 2^249828858 is an apocalyptic number.

249828858 is an abundant number, since it is smaller than the sum of its proper divisors (293031642).

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

249828858 is a wasteful number, since it uses less digits than its factorization.

249828858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126 (or 40123 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The square root of 249828858 is about 15805.9753890736. The cubic root of 249828858 is about 629.8167418605.

The spelling of 249828858 in words is "two hundred forty-nine million, eight hundred twenty-eight thousand, eight hundred fifty-eight".