228256372 has 24 divisors (see below), whose sum is σ = 407927016. Its totient is φ = 111715968.

The previous prime is 228256363. The next prime is 228256397. The reversal of 228256372 is 273652822.

It can be written as a sum of positive squares in 4 ways, for example, as 27920656 + 200335716 = 5284^2 + 14154^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117118 + ... + 119050.

It is an arithmetic number, because the mean of its divisors is an integer number (16996959).

Almost surely, 2^228256372 is an apocalyptic number.

It is an amenable number.

228256372 is a deficient number, since it is larger than the sum of its proper divisors (179670644).

228256372 is a wasteful number, since it uses less digits than its factorization.

228256372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2545 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 228256372 is about 15108.1558106872. The cubic root of 228256372 is about 611.1403661391.

The spelling of 228256372 in words is "two hundred twenty-eight million, two hundred fifty-six thousand, three hundred seventy-two".