228297987982 has 16 divisors (see below), whose sum is σ = 360853635600. Its totient is φ = 108026213760.

The previous prime is 228297987899. The next prime is 228297987991. The reversal of 228297987982 is 289789792822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3156507 + ... + 3228022.

It is an arithmetic number, because the mean of its divisors is an integer number (22553352225).

Almost surely, 2^228297987982 is an apocalyptic number.

228297987982 is a deficient number, since it is larger than the sum of its proper divisors (132555647618).

228297987982 is a wasteful number, since it uses less digits than its factorization.

228297987982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385491.

The product of its digits is 292626432, while the sum is 73.

The spelling of 228297987982 in words is "two hundred twenty-eight billion, two hundred ninety-seven million, nine hundred eighty-seven thousand, nine hundred eighty-two".