222071490 has 64 divisors (see below), whose sum is σ = 594501120. Its totient is φ = 58988160.

The previous prime is 222071489. The next prime is 222071503. The reversal of 222071490 is 94170222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74407 + ... + 77333.

It is an arithmetic number, because the mean of its divisors is an integer number (9289080).

Almost surely, 2^222071490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222071490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297250560).

222071490 is an abundant number, since it is smaller than the sum of its proper divisors (372429630).

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

222071490 is a wasteful number, since it uses less digits than its factorization.

222071490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 222071490 is about 14902.0632799623. The cubic root of 222071490 is about 605.5698839892.

The spelling of 222071490 in words is "two hundred twenty-two million, seventy-one thousand, four hundred ninety".