247988992 has 36 divisors (see below), whose sum is σ = 507104136. Its totient is φ = 120965120.

The previous prime is 247988989. The next prime is 247989017. The reversal of 247988992 is 299889742.

It is a super-2 number, since 2×247988992² = 122997080306352128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318 + ... + 22309.

It is an arithmetic number, because the mean of its divisors is an integer number (14086226).

Almost surely, 2^247988992 is an apocalyptic number.

It is an amenable number.

247988992 is an abundant number, since it is smaller than the sum of its proper divisors (259115144).

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

247988992 is an equidigital number, since it uses as much as digits as its factorization.

247988992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23684 (or 23670 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The square root of 247988992 is about 15747.6662397957. Note that the first 3 decimals coincide. The cubic root of 247988992 is about 628.2668345563.

The spelling of 247988992 in words is "two hundred forty-seven million, nine hundred eighty-eight thousand, nine hundred ninety-two".