45220023 has 12 divisors (see below), whose sum is σ = 65965848. Its totient is φ = 29847600.

The previous prime is 45220013. The next prime is 45220027. The reversal of 45220023 is 32002254.

It is not a de Polignac number, because 45220023 - 2⁵ = 45219991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45219978 and 45220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220027) 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 11 ways as a sum of consecutive naturals, for example, 23965 + ... + 25782.

It is an arithmetic number, because the mean of its divisors is an integer number (5497154).

Almost surely, 2^45220023 is an apocalyptic number.

45220023 is a deficient number, since it is larger than the sum of its proper divisors (20745825).

45220023 is a wasteful number, since it uses less digits than its factorization.

45220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49854 (or 49851 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 45220023 is about 6724.5834815251. The cubic root of 45220023 is about 356.2680906787.

Adding to 45220023 its reverse (32002254), we get a palindrome (77222277).

The spelling of 45220023 in words is "forty-five million, two hundred twenty thousand, twenty-three".