249315798 has 16 divisors (see below), whose sum is σ = 501935616. Its totient is φ = 82554600.

The previous prime is 249315797. The next prime is 249315827. The reversal of 249315798 is 897513942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249315797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136686 + ... + 138497.

It is an arithmetic number, because the mean of its divisors is an integer number (31370976).

Almost surely, 2^249315798 is an apocalyptic number.

249315798 is an abundant number, since it is smaller than the sum of its proper divisors (252619818).

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

249315798 is a wasteful number, since it uses less digits than its factorization.

249315798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275339.

The product of its digits is 544320, while the sum is 48.

The square root of 249315798 is about 15789.7371099078. The cubic root of 249315798 is about 629.3853062053.

The spelling of 249315798 in words is "two hundred forty-nine million, three hundred fifteen thousand, seven hundred ninety-eight".