45944220 has 48 divisors (see below), whose sum is σ = 147022848. Its totient is φ = 10501440.

The previous prime is 45944209. The next prime is 45944233. The reversal of 45944220 is 2244954.

It is a super-2 number, since 2×45944220² = 4221742702816800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54276 + ... + 55115.

It is an arithmetic number, because the mean of its divisors is an integer number (3062976).

Almost surely, 2^45944220 is an apocalyptic number.

It is an amenable number.

45944220 is an abundant number, since it is smaller than the sum of its proper divisors (101078628).

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

45944220 is a wasteful number, since it uses less digits than its factorization.

45944220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109410 (or 109408 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 45944220 is about 6778.2165796026. The cubic root of 45944220 is about 358.1599006888.

It can be divided in two parts, 45944 and 220, that added together give a palindrome (46164).

The spelling of 45944220 in words is "forty-five million, nine hundred forty-four thousand, two hundred twenty".