45491222 has 24 divisors (see below), whose sum is σ = 79974768. Its totient is φ = 19010880.

The previous prime is 45491219. The next prime is 45491231. The reversal of 45491222 is 22219454.

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 11 ways as a sum of consecutive naturals, for example, 22568 + ... + 24500.

It is an arithmetic number, because the mean of its divisors is an integer number (3332282).

Almost surely, 2^45491222 is an apocalyptic number.

45491222 is a deficient number, since it is larger than the sum of its proper divisors (34483546).

45491222 is a wasteful number, since it uses less digits than its factorization.

45491222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 1983 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 45491222 is about 6744.7180815806. The cubic root of 45491222 is about 356.9788896545.

The spelling of 45491222 in words is "forty-five million, four hundred ninety-one thousand, two hundred twenty-two".