222728070 has 32 divisors (see below), whose sum is σ = 562682880. Its totient is φ = 56268000.

The previous prime is 222728059. The next prime is 222728071. The reversal of 222728070 is 70827222.

222728070 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222728071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194806 + ... + 195945.

It is an arithmetic number, because the mean of its divisors is an integer number (17583840).

Almost surely, 2^222728070 is an apocalyptic number.

222728070 is an abundant number, since it is smaller than the sum of its proper divisors (339954810).

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

222728070 is a wasteful number, since it uses less digits than its factorization.

222728070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390780.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 222728070 is about 14924.0768558729. The cubic root of 222728070 is about 606.1661091983.

The spelling of 222728070 in words is "two hundred twenty-two million, seven hundred twenty-eight thousand, seventy".