45219022 has 4 divisors (see below), whose sum is σ = 67828536. Its totient is φ = 22609510.

The previous prime is 45219019. The next prime is 45219043. The reversal of 45219022 is 22091254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22091254 = 2 ⋅11045627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11304754 + ... + 11304757.

It is an arithmetic number, because the mean of its divisors is an integer number (16957134).

Almost surely, 2^45219022 is an apocalyptic number.

45219022 is a deficient number, since it is larger than the sum of its proper divisors (22609514).

45219022 is a wasteful number, since it uses less digits than its factorization.

45219022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22609513.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 45219022 is about 6724.5090527116. The cubic root of 45219022 is about 356.2654618507.

The spelling of 45219022 in words is "forty-five million, two hundred nineteen thousand, twenty-two".