45189222 has 32 divisors (see below), whose sum is σ = 98794752. Its totient is φ = 13695264.

The previous prime is 45189211. The next prime is 45189241. The reversal of 45189222 is 22298154.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 903 + ... + 9549.

It is an arithmetic number, because the mean of its divisors is an integer number (3087336).

Almost surely, 2^45189222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45189222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49397376).

45189222 is an abundant number, since it is smaller than the sum of its proper divisors (53605530).

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

45189222 is a wasteful number, since it uses less digits than its factorization.

45189222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732.

The product of its digits is 11520, while the sum is 33.

The square root of 45189222 is about 6722.2929123923. The cubic root of 45189222 is about 356.1871832610.

The spelling of 45189222 in words is "forty-five million, one hundred eighty-nine thousand, two hundred twenty-two".