228858972 has 24 divisors (see below), whose sum is σ = 534945936. Its totient is φ = 76151808.

The previous prime is 228858941. The next prime is 228858977. The reversal of 228858972 is 279858822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228858977) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9603 + ... + 23450.

It is an arithmetic number, because the mean of its divisors is an integer number (22289414).

Almost surely, 2^228858972 is an apocalyptic number.

It is an amenable number.

228858972 is an abundant number, since it is smaller than the sum of its proper divisors (306086964).

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

228858972 is a wasteful number, since it uses less digits than its factorization.

228858972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33637 (or 33635 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 228858972 is about 15128.0855365112. The cubic root of 228858972 is about 611.6776999184.

The spelling of 228858972 in words is "two hundred twenty-eight million, eight hundred fifty-eight thousand, nine hundred seventy-two".