75012228 has 72 divisors (see below), whose sum is σ = 211367520. Its totient is φ = 22291200.

The previous prime is 75012227. The next prime is 75012233. The reversal of 75012228 is 82221057.

It is not an unprimeable number, because it can be changed into a prime (75012227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8403 + ... + 14853.

It is an arithmetic number, because the mean of its divisors is an integer number (2935660).

Almost surely, 2^75012228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75012228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105683760).

75012228 is an abundant number, since it is smaller than the sum of its proper divisors (136355292).

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

75012228 is a wasteful number, since it uses less digits than its factorization.

75012228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497 (or 6492 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 75012228 is about 8660.9599929800. The cubic root of 75012228 is about 421.7392502824.

The spelling of 75012228 in words is "seventy-five million, twelve thousand, two hundred twenty-eight".