249618498 has 16 divisors (see below), whose sum is σ = 507699360. Its totient is φ = 81795776.

The previous prime is 249618493. The next prime is 249618511. The reversal of 249618498 is 894816942.

It is a self number, because there is not a number n which added to its sum of digits gives 249618498.

It is not an unprimeable number, because it can be changed into a prime (249618491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352215 + ... + 352922.

It is an arithmetic number, because the mean of its divisors is an integer number (31731210).

Almost surely, 2^249618498 is an apocalyptic number.

249618498 is an abundant number, since it is smaller than the sum of its proper divisors (258080862).

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

249618498 is a wasteful number, since it uses less digits than its factorization.

249618498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705201.

The product of its digits is 995328, while the sum is 51.

The square root of 249618498 is about 15799.3195423094. The cubic root of 249618498 is about 629.6399202100.

The spelling of 249618498 in words is "two hundred forty-nine million, six hundred eighteen thousand, four hundred ninety-eight".