45027749 has 16 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 39619776.

The previous prime is 45027743. The next prime is 45027803. The reversal of 45027749 is 94772054.

45027749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 45027749 - 2⁴ = 45027733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45027743) 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 15 ways as a sum of consecutive naturals, for example, 30572 + ... + 32010.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^45027749 is an apocalyptic number.

It is an amenable number.

45027749 is a deficient number, since it is larger than the sum of its proper divisors (5775451).

45027749 is a wasteful number, since it uses less digits than its factorization.

45027749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 45027749 is about 6710.2719020916. The cubic root of 45027749 is about 355.7624267095.

The spelling of 45027749 in words is "forty-five million, twenty-seven thousand, seven hundred forty-nine".