248987988 has 18 divisors (see below), whose sum is σ = 629386394. Its totient is φ = 82995984.

The previous prime is 248987971. The next prime is 248988007. The reversal of 248987988 is 889789842.

It is a happy number.

248987988 is a `hidden beast` number, since 2 + 489 + 8 + 79 + 88 = 666.

248987988 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 206841924 + 42146064 = 14382^2 + 6492^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3458131 + ... + 3458202.

Almost surely, 2^248987988 is an apocalyptic number.

It is an amenable number.

248987988 is an abundant number, since it is smaller than the sum of its proper divisors (380398406).

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

248987988 is a wasteful number, since it uses less digits than its factorization.

248987988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6916343 (or 6916338 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 63.

The square root of 248987988 is about 15779.3532186842. The cubic root of 248987988 is about 629.1093385500.

The spelling of 248987988 in words is "two hundred forty-eight million, nine hundred eighty-seven thousand, nine hundred eighty-eight".