2287656990 has 24 divisors (see below), whose sum is σ = 5947908408. Its totient is φ = 610041840.

The previous prime is 2287656989. The next prime is 2287657049. The reversal of 2287656990 is 996567822.

2287656990 is a `hidden beast` number, since 2 + 2 + 8 + 76 + 569 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12709116 + ... + 12709295.

It is an arithmetic number, because the mean of its divisors is an integer number (247829517).

Almost surely, 2^2287656990 is an apocalyptic number.

2287656990 is an abundant number, since it is smaller than the sum of its proper divisors (3660251418).

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

2287656990 is a wasteful number, since it uses less digits than its factorization.

2287656990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25418424 (or 25418421 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 2287656990 is about 47829.4573458658. The cubic root of 2287656990 is about 1317.6406027669.

The spelling of 2287656990 in words is "two billion, two hundred eighty-seven million, six hundred fifty-six thousand, nine hundred ninety".