45044720 has 60 divisors (see below), whose sum is σ = 121838184. Its totient is φ = 15442560.

The previous prime is 45044719. The next prime is 45044803. The reversal of 45044720 is 2744054.

It is a self number, because there is not a number n which added to its sum of digits gives 45044720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1826 + ... + 9665.

Almost surely, 2^45044720 is an apocalyptic number.

45044720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45044720 is an abundant number, since it is smaller than the sum of its proper divisors (76793464).

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

45044720 is a wasteful number, since it uses less digits than its factorization.

45044720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11518 (or 11505 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 45044720 is about 6711.5363367861. The cubic root of 45044720 is about 355.8071168239.

Adding to 45044720 its reverse (2744054), we get a palindrome (47788774).

The spelling of 45044720 in words is "forty-five million, forty-four thousand, seven hundred twenty".