228160972 has 24 divisors (see below), whose sum is σ = 438114096. Its totient is φ = 103316928.

The previous prime is 228160969. The next prime is 228160973. The reversal of 228160972 is 279061822.

It is not an unprimeable number, because it can be changed into a prime (228160973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38638 + ... + 44149.

It is an arithmetic number, because the mean of its divisors is an integer number (18254754).

Almost surely, 2^228160972 is an apocalyptic number.

It is an amenable number.

228160972 is a deficient number, since it is larger than the sum of its proper divisors (209953124).

228160972 is a wasteful number, since it uses less digits than its factorization.

228160972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82857 (or 82855 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 228160972 is about 15104.9982456139. The cubic root of 228160972 is about 611.0552120134.

The spelling of 228160972 in words is "two hundred twenty-eight million, one hundred sixty thousand, nine hundred seventy-two".