45009922 has 4 divisors (see below), whose sum is σ = 67514886. Its totient is φ = 22504960.

The previous prime is 45009911. The next prime is 45009967. The reversal of 45009922 is 22990054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22990054 = 2 ⋅11495027.

It can be written as a sum of positive squares in only one way, i.e., 44475561 + 534361 = 6669^2 + 731^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 11252479 + ... + 11252482.

Almost surely, 2^45009922 is an apocalyptic number.

45009922 is a deficient number, since it is larger than the sum of its proper divisors (22504964).

45009922 is a wasteful number, since it uses less digits than its factorization.

45009922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22504963.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 45009922 is about 6708.9434339544. The cubic root of 45009922 is about 355.7154703763.

Adding to 45009922 its reverse (22990054), we get a palindrome (67999976).

The spelling of 45009922 in words is "forty-five million, nine thousand, nine hundred twenty-two".