45073220 has 24 divisors (see below), whose sum is σ = 95152344. Its totient is φ = 17934336.

The previous prime is 45073211. The next prime is 45073229. The reversal of 45073220 is 2237054.

45073220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45073211) and next prime (45073229).

It can be written as a sum of positive squares in 4 ways, for example, as 6310144 + 38763076 = 2512^2 + 6226^2 .

It is a super-2 number, since 2×45073220² = 4063190322336800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45073229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979 + ... + 9698.

It is an arithmetic number, because the mean of its divisors is an integer number (3964681).

Almost surely, 2^45073220 is an apocalyptic number.

It is an amenable number.

45073220 is an abundant number, since it is smaller than the sum of its proper divisors (50079124).

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

45073220 is a wasteful number, since it uses less digits than its factorization.

45073220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879 (or 11877 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 45073220 is about 6713.6592108924. The cubic root of 45073220 is about 355.8821412658.

The spelling of 45073220 in words is "forty-five million, seventy-three thousand, two hundred twenty".