45389447 has 4 divisors (see below), whose sum is σ = 45516240. Its totient is φ = 45262656.

The previous prime is 45389441. The next prime is 45389479. The reversal of 45389447 is 74498354.

45389447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45389447 - 2⁸ = 45389191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45389398 and 45389407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45389441) 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 3 ways as a sum of consecutive naturals, for example, 62858 + ... + 63575.

It is an arithmetic number, because the mean of its divisors is an integer number (11379060).

Almost surely, 2^45389447 is an apocalyptic number.

45389447 is a deficient number, since it is larger than the sum of its proper divisors (126793).

45389447 is a wasteful number, since it uses less digits than its factorization.

45389447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126792.

The product of its digits is 483840, while the sum is 44.

The square root of 45389447 is about 6737.1690642287. The cubic root of 45389447 is about 356.7124744884.

The spelling of 45389447 in words is "forty-five million, three hundred eighty-nine thousand, four hundred forty-seven".