249648816 has 40 divisors (see below), whose sum is σ = 646674880. Its totient is φ = 82990656.

The previous prime is 249648799. The next prime is 249648821. The reversal of 249648816 is 618846942.

249648816 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 (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11331 + ... + 25053.

It is an arithmetic number, because the mean of its divisors is an integer number (16166872).

Almost surely, 2^249648816 is an apocalyptic number.

It is an amenable number.

249648816 is an abundant number, since it is smaller than the sum of its proper divisors (397026064).

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

249648816 is a wasteful number, since it uses less digits than its factorization.

249648816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14113 (or 14107 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 249648816 is about 15800.2789848787. The cubic root of 249648816 is about 629.6654106424.

The spelling of 249648816 in words is "two hundred forty-nine million, six hundred forty-eight thousand, eight hundred sixteen".