45639393 has 8 divisors (see below), whose sum is σ = 60886368. Its totient is φ = 30409344.

The previous prime is 45639367. The next prime is 45639401. The reversal of 45639393 is 39393654.

45639393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45639393 - 2⁵ = 45639361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45639313) 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, 4846 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (7610796).

Almost surely, 2^45639393 is an apocalyptic number.

It is an amenable number.

45639393 is a deficient number, since it is larger than the sum of its proper divisors (15246975).

45639393 is a wasteful number, since it uses less digits than its factorization.

45639393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463.

The product of its digits is 262440, while the sum is 42.

The square root of 45639393 is about 6755.6933767009. The cubic root of 45639393 is about 357.3660456295.

The spelling of 45639393 in words is "forty-five million, six hundred thirty-nine thousand, three hundred ninety-three".