228465431994 has 16 divisors (see below), whose sum is σ = 457153456032. Its totient is φ = 76118045328.

The previous prime is 228465431977. The next prime is 228465432001. The reversal of 228465431994 is 499134564822.

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, 9261324 + ... + 9285959.

It is an arithmetic number, because the mean of its divisors is an integer number (28572091002).

Almost surely, 2^228465431994 is an apocalyptic number.

228465431994 is an abundant number, since it is smaller than the sum of its proper divisors (228688024038).

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

228465431994 is a wasteful number, since it uses less digits than its factorization.

228465431994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18549341.

The product of its digits is 14929920, while the sum is 57.

The spelling of 228465431994 in words is "two hundred twenty-eight billion, four hundred sixty-five million, four hundred thirty-one thousand, nine hundred ninety-four".