222514728 has 16 divisors (see below), whose sum is σ = 556286880. Its totient is φ = 74171568.

The previous prime is 222514727. The next prime is 222514729. The reversal of 222514728 is 827415222.

222514728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222514727) and next prime (222514729).

It is not an unprimeable number, because it can be changed into a prime (222514727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4635700 + ... + 4635747.

It is an arithmetic number, because the mean of its divisors is an integer number (34767930).

Almost surely, 2^222514728 is an apocalyptic number.

It is an amenable number.

222514728 is an abundant number, since it is smaller than the sum of its proper divisors (333772152).

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

222514728 is a wasteful number, since it uses less digits than its factorization.

222514728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9271456 (or 9271452 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 222514728 is about 14916.9275656886. The cubic root of 222514728 is about 605.9725068946.

The spelling of 222514728 in words is "two hundred twenty-two million, five hundred fourteen thousand, seven hundred twenty-eight".