249488634 has 16 divisors (see below), whose sum is σ = 528329088. Its totient is φ = 78270912.

The previous prime is 249488611. The next prime is 249488641. The reversal of 249488634 is 436884942.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222882 + ... + 1223085.

It is an arithmetic number, because the mean of its divisors is an integer number (33020568).

Almost surely, 2^249488634 is an apocalyptic number.

249488634 is an abundant number, since it is smaller than the sum of its proper divisors (278840454).

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

249488634 is a wasteful number, since it uses less digits than its factorization.

249488634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445989.

The product of its digits is 1327104, while the sum is 48.

The square root of 249488634 is about 15795.2092103903. The cubic root of 249488634 is about 629.5307112329.

The spelling of 249488634 in words is "two hundred forty-nine million, four hundred eighty-eight thousand, six hundred thirty-four".