745227228 has 24 divisors (see below), whose sum is σ = 1794956800. Its totient is φ = 240395760.

The previous prime is 745227221. The next prime is 745227257. The reversal of 745227228 is 822722547.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745227221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001278 + ... + 1002021.

Almost surely, 2^745227228 is an apocalyptic number.

It is an amenable number.

745227228 is an abundant number, since it is smaller than the sum of its proper divisors (1049729572).

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

745227228 is a wasteful number, since it uses less digits than its factorization.

745227228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003337 (or 2003335 counting only the distinct ones).

The product of its digits is 125440, while the sum is 39.

The square root of 745227228 is about 27298.8503054616. The cubic root of 745227228 is about 906.6289265457.

The spelling of 745227228 in words is "seven hundred forty-five million, two hundred twenty-seven thousand, two hundred twenty-eight".