248905740 has 48 divisors (see below), whose sum is σ = 699229440. Its totient is φ = 66156480.

The previous prime is 248905739. The next prime is 248905763. The reversal of 248905740 is 47509842.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11991 + ... + 25329.

It is an arithmetic number, because the mean of its divisors is an integer number (14567280).

Almost surely, 2^248905740 is an apocalyptic number.

248905740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248905740 is an abundant number, since it is smaller than the sum of its proper divisors (450323700).

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

248905740 is a wasteful number, since it uses less digits than its factorization.

248905740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662 (or 13660 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 248905740 is about 15776.7468129523. The cubic root of 248905740 is about 629.0400598621.

The spelling of 248905740 in words is "two hundred forty-eight million, nine hundred five thousand, seven hundred forty".