45643868 has 24 divisors (see below), whose sum is σ = 83594112. Its totient is φ = 21765744.

The previous prime is 45643867. The next prime is 45643877. The reversal of 45643868 is 86834654.

45643868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×45643868³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45643867) 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 7 ways as a sum of consecutive naturals, for example, 49871 + ... + 50777.

It is an arithmetic number, because the mean of its divisors is an integer number (3483088).

Almost surely, 2^45643868 is an apocalyptic number.

It is an amenable number.

45643868 is a deficient number, since it is larger than the sum of its proper divisors (37950244).

45643868 is a wasteful number, since it uses less digits than its factorization.

45643868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1479 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 45643868 is about 6756.0245707072. The cubic root of 45643868 is about 357.3777253115.

The spelling of 45643868 in words is "forty-five million, six hundred forty-three thousand, eight hundred sixty-eight".