228140712 has 40 divisors (see below), whose sum is σ = 639007050. Its totient is φ = 76046688.

The previous prime is 228140701. The next prime is 228140729. The reversal of 228140712 is 217041822.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 89984196 = 11754^2 + 9486^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 175387 + ... + 176682.

Almost surely, 2^228140712 is an apocalyptic number.

It is an amenable number.

228140712 is an abundant number, since it is smaller than the sum of its proper divisors (410866338).

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

228140712 is a wasteful number, since it uses less digits than its factorization.

228140712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352087 (or 352074 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 228140712 is about 15104.3275917864. The cubic root of 228140712 is about 611.0371248636.

The spelling of 228140712 in words is "two hundred twenty-eight million, one hundred forty thousand, seven hundred twelve".