248305720 has 32 divisors (see below), whose sum is σ = 601665120. Its totient is φ = 91681920.

The previous prime is 248305711. The next prime is 248305763. The reversal of 248305720 is 27503842.

248305720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 238236 + ... + 239275.

It is an arithmetic number, because the mean of its divisors is an integer number (18802035).

Almost surely, 2^248305720 is an apocalyptic number.

248305720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248305720 is an abundant number, since it is smaller than the sum of its proper divisors (353359400).

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

248305720 is a wasteful number, since it uses less digits than its factorization.

248305720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477535 (or 477531 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 248305720 is about 15757.7193781334. The cubic root of 248305720 is about 628.5341919106.

The spelling of 248305720 in words is "two hundred forty-eight million, three hundred five thousand, seven hundred twenty".