228311994276 has 72 divisors (see below), whose sum is σ = 606072987520. Its totient is φ = 75140631072.

The previous prime is 228311994233. The next prime is 228311994299. The reversal of 228311994276 is 672499113822.

228311994276 is a `hidden beast` number, since 2 + 28 + 3 + 1 + 199 + 427 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1409851 + ... + 1563426.

Almost surely, 2^228311994276 is an apocalyptic number.

It is an amenable number.

228311994276 is an abundant number, since it is smaller than the sum of its proper divisors (377760993244).

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

228311994276 is a wasteful number, since it uses less digits than its factorization.

228311994276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973375 (or 2973361 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 228311994276 in words is "two hundred twenty-eight billion, three hundred eleven million, nine hundred ninety-four thousand, two hundred seventy-six".