72000228 has 24 divisors (see below), whose sum is σ = 173420800. Its totient is φ = 23225760.

The previous prime is 72000221. The next prime is 72000239. The reversal of 72000228 is 82200027.

It is not an unprimeable number, because it can be changed into a prime (72000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96403 + ... + 97146.

Almost surely, 2^72000228 is an apocalyptic number.

It is an amenable number.

72000228 is an abundant number, since it is smaller than the sum of its proper divisors (101420572).

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

72000228 is a wasteful number, since it uses less digits than its factorization.

72000228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193587 (or 193585 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 72000228 is about 8485.2948092568. The cubic root of 72000228 is about 416.0172037387.

The spelling of 72000228 in words is "seventy-two million, two hundred twenty-eight", and thus it is an aban number.