45645782 has 32 divisors (see below), whose sum is σ = 89232192. Its totient is φ = 16994304.

The previous prime is 45645779. The next prime is 45645791. The reversal of 45645782 is 28754654.

It is a super-4 number, since 4×45645782⁴ (a number of 32 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4283 + ... + 10470.

It is an arithmetic number, because the mean of its divisors is an integer number (2788506).

Almost surely, 2^45645782 is an apocalyptic number.

45645782 is a deficient number, since it is larger than the sum of its proper divisors (43586410).

45645782 is a wasteful number, since it uses less digits than its factorization.

45645782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14792.

The product of its digits is 268800, while the sum is 41.

The square root of 45645782 is about 6756.1662205721. The cubic root of 45645782 is about 357.3827205893.

The spelling of 45645782 in words is "forty-five million, six hundred forty-five thousand, seven hundred eighty-two".