228537684 has 72 divisors (see below), whose sum is σ = 588588000. Its totient is φ = 74758464.

The previous prime is 228537679. The next prime is 228537689. The reversal of 228537684 is 486735822.

It is an interprime number because it is at equal distance from previous prime (228537679) and next prime (228537689).

Its product of digits (645120) is a multiple of the sum of its prime divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228537689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545227 + ... + 545645.

Almost surely, 2^228537684 is an apocalyptic number.

It is an amenable number.

228537684 is an abundant number, since it is smaller than the sum of its proper divisors (360050316).

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

228537684 is a wasteful number, since it uses less digits than its factorization.

228537684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 672 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 228537684 is about 15117.4628823755. The cubic root of 228537684 is about 611.3913274275.

The spelling of 228537684 in words is "two hundred twenty-eight million, five hundred thirty-seven thousand, six hundred eighty-four".