228763642 has 16 divisors (see below), whose sum is σ = 348019200. Its totient is φ = 112764960.

The previous prime is 228763607. The next prime is 228763643. The reversal of 228763642 is 246367822.

It is a super-2 number, since 2×228763642² = 104665607802208328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228763595 and 228763604.

It is not an unprimeable number, because it can be changed into a prime (228763643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65767 + ... + 69157.

It is an arithmetic number, because the mean of its divisors is an integer number (21751200).

Almost surely, 2^228763642 is an apocalyptic number.

228763642 is a deficient number, since it is larger than the sum of its proper divisors (119255558).

228763642 is a wasteful number, since it uses less digits than its factorization.

228763642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861.

The product of its digits is 193536, while the sum is 40.

The square root of 228763642 is about 15124.9344461389. The cubic root of 228763642 is about 611.5927577479.

The spelling of 228763642 in words is "two hundred twenty-eight million, seven hundred sixty-three thousand, six hundred forty-two".