248697780 has 24 divisors (see below), whose sum is σ = 696353952. Its totient is φ = 66319392.

The previous prime is 248697737. The next prime is 248697791. The reversal of 248697780 is 87796842.

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, 2072422 + ... + 2072541.

It is an arithmetic number, because the mean of its divisors is an integer number (29014748).

Almost surely, 2^248697780 is an apocalyptic number.

248697780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248697780 is an abundant number, since it is smaller than the sum of its proper divisors (447656172).

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

248697780 is a wasteful number, since it uses less digits than its factorization.

248697780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144975 (or 4144973 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 248697780 is about 15770.1547234008. The cubic root of 248697780 is about 628.8648240216.

The spelling of 248697780 in words is "two hundred forty-eight million, six hundred ninety-seven thousand, seven hundred eighty".