45544020 has 48 divisors (see below), whose sum is σ = 135027648. Its totient is φ = 11430400.

The previous prime is 45544001. The next prime is 45544021. The reversal of 45544020 is 2044554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45544021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21306 + ... + 23345.

It is an arithmetic number, because the mean of its divisors is an integer number (2813076).

Almost surely, 2^45544020 is an apocalyptic number.

It is an amenable number.

45544020 is an abundant number, since it is smaller than the sum of its proper divisors (89483628).

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

45544020 is a wasteful number, since it uses less digits than its factorization.

45544020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44680 (or 44678 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45544020 is about 6748.6309722787. The cubic root of 45544020 is about 357.1169418148.

Adding to 45544020 its reverse (2044554), we get a palindrome (47588574).

The spelling of 45544020 in words is "forty-five million, five hundred forty-four thousand, twenty".