978570222 has 16 divisors (see below), whose sum is σ = 2236732032. Its totient is φ = 279591480.

The previous prime is 978570199. The next prime is 978570227. The reversal of 978570222 is 222075879.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 23299291 = 978570222 / (9 + 7 + 8 + 5 + 7 + 0 + 2 + 2 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978570227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11649604 + ... + 11649687.

It is an arithmetic number, because the mean of its divisors is an integer number (139795752).

Almost surely, 2^978570222 is an apocalyptic number.

978570222 is an abundant number, since it is smaller than the sum of its proper divisors (1258161810).

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

978570222 is a wasteful number, since it uses less digits than its factorization.

978570222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23299303.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 978570222 is about 31282.1070581890. The cubic root of 978570222 is about 992.8050982067.

The spelling of 978570222 in words is "nine hundred seventy-eight million, five hundred seventy thousand, two hundred twenty-two".