248978748 has 12 divisors (see below), whose sum is σ = 580950440. Its totient is φ = 82992912.

The previous prime is 248978711. The next prime is 248978777. The reversal of 248978748 is 847879842.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10374103 + ... + 10374126.

Almost surely, 2^248978748 is an apocalyptic number.

It is an amenable number.

248978748 is an abundant number, since it is smaller than the sum of its proper divisors (331971692).

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

248978748 is a wasteful number, since it uses less digits than its factorization.

248978748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20748236 (or 20748234 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 57.

The square root of 248978748 is about 15779.0604283018. The cubic root of 248978748 is about 629.1015563242.

The spelling of 248978748 in words is "two hundred forty-eight million, nine hundred seventy-eight thousand, seven hundred forty-eight".