247790560 has 48 divisors (see below), whose sum is σ = 595350000. Its totient is φ = 97432576.

The previous prime is 247790551. The next prime is 247790573. The reversal of 247790560 is 65097742.

247790560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247790560² = 122800323250227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 3685 + ... + 22564.

It is an arithmetic number, because the mean of its divisors is an integer number (12403125).

Almost surely, 2^247790560 is an apocalyptic number.

247790560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247790560 is an abundant number, since it is smaller than the sum of its proper divisors (347559440).

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

247790560 is a wasteful number, since it uses less digits than its factorization.

247790560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26323 (or 26315 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 247790560 is about 15741.3646168304. The cubic root of 247790560 is about 628.0992175584.

The spelling of 247790560 in words is "two hundred forty-seven million, seven hundred ninety thousand, five hundred sixty".