228135672 has 48 divisors (see below), whose sum is σ = 620217000. Its totient is φ = 75756096.

The previous prime is 228135629. The next prime is 228135749. The reversal of 228135672 is 276531822.

228135672 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 13479 + ... + 25257.

Almost surely, 2^228135672 is an apocalyptic number.

It is an amenable number.

228135672 is an abundant number, since it is smaller than the sum of its proper divisors (392081328).

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

228135672 is a wasteful number, since it uses less digits than its factorization.

228135672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12060 (or 12053 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 228135672 is about 15104.1607512632. The cubic root of 228135672 is about 611.0326252286.

The spelling of 228135672 in words is "two hundred twenty-eight million, one hundred thirty-five thousand, six hundred seventy-two".