222458148 has 72 divisors (see below), whose sum is σ = 616333536. Its totient is φ = 67094400.

The previous prime is 222458147. The next prime is 222458161. The reversal of 222458148 is 841854222.

It is a super-2 number, since 2×222458148² = 98975255223179808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (222458147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91063 + ... + 93473.

It is an arithmetic number, because the mean of its divisors is an integer number (8560188).

Almost surely, 2^222458148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222458148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308166768).

222458148 is an abundant number, since it is smaller than the sum of its proper divisors (393875388).

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

222458148 is a wasteful number, since it uses less digits than its factorization.

222458148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665 (or 2660 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 222458148 is about 14915.0309419726. The cubic root of 222458148 is about 605.9211412597.

The spelling of 222458148 in words is "two hundred twenty-two million, four hundred fifty-eight thousand, one hundred forty-eight".