228645044 has 12 divisors (see below), whose sum is σ = 402525984. Its totient is φ = 113637624.

The previous prime is 228645007. The next prime is 228645059. The reversal of 228645044 is 440546822.

It is a super-2 number, since 2×228645044² = 104557112291523872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228644995 and 228645013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170474 + ... + 171809.

It is an arithmetic number, because the mean of its divisors is an integer number (33543832).

Almost surely, 2^228645044 is an apocalyptic number.

It is an amenable number.

228645044 is a deficient number, since it is larger than the sum of its proper divisors (173880940).

228645044 is a wasteful number, since it uses less digits than its factorization.

228645044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342454 (or 342452 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 228645044 is about 15121.0133258324. The cubic root of 228645044 is about 611.4870500760.

The spelling of 228645044 in words is "two hundred twenty-eight million, six hundred forty-five thousand, forty-four".