185222442 has 16 divisors (see below), whose sum is σ = 372719520. Its totient is φ = 61361712.

The previous prime is 185222437. The next prime is 185222447. The reversal of 185222442 is 244222581.

It is an interprime number because it is at equal distance from previous prime (185222437) and next prime (185222447).

It is not an unprimeable number, because it can be changed into a prime (185222447) 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 7 ways as a sum of consecutive naturals, for example, 93717 + ... + 95672.

It is an arithmetic number, because the mean of its divisors is an integer number (23294970).

Almost surely, 2^185222442 is an apocalyptic number.

185222442 is an abundant number, since it is smaller than the sum of its proper divisors (187497078).

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

185222442 is a wasteful number, since it uses less digits than its factorization.

185222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189557.

The product of its digits is 10240, while the sum is 30.

The square root of 185222442 is about 13609.6451827371. The cubic root of 185222442 is about 570.0302046167.

The spelling of 185222442 in words is "one hundred eighty-five million, two hundred twenty-two thousand, four hundred forty-two".