228632642 has 16 divisors (see below), whose sum is σ = 397312512. Its totient is φ = 96642720.

The previous prime is 228632633. The next prime is 228632659. The reversal of 228632642 is 246236822.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 110834 + ... + 112877.

It is an arithmetic number, because the mean of its divisors is an integer number (24832032).

Almost surely, 2^228632642 is an apocalyptic number.

228632642 is a deficient number, since it is larger than the sum of its proper divisors (168679870).

228632642 is a wasteful number, since it uses less digits than its factorization.

228632642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223793.

The product of its digits is 55296, while the sum is 35.

The square root of 228632642 is about 15120.6032287075. The cubic root of 228632642 is about 611.4759939292.

The spelling of 228632642 in words is "two hundred twenty-eight million, six hundred thirty-two thousand, six hundred forty-two".