228991254 has 24 divisors (see below), whose sum is σ = 468903672. Its totient is φ = 74551680.

The previous prime is 228991183. The next prime is 228991303. The reversal of 228991254 is 452199822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774 + ... + 21414.

It is an arithmetic number, because the mean of its divisors is an integer number (19537653).

Almost surely, 2^228991254 is an apocalyptic number.

228991254 is an abundant number, since it is smaller than the sum of its proper divisors (239912418).

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

228991254 is a wasteful number, since it uses less digits than its factorization.

228991254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20732 (or 20689 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 228991254 is about 15132.4569716884. The cubic root of 228991254 is about 611.7955284719.

The spelling of 228991254 in words is "two hundred twenty-eight million, nine hundred ninety-one thousand, two hundred fifty-four".