45390393 has 12 divisors (see below), whose sum is σ = 65732628. Its totient is φ = 30182400.

The previous prime is 45390383. The next prime is 45390409. The reversal of 45390393 is 39309354.

It is a happy number.

45390393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43718544 + 1671849 = 6612^2 + 1293^2 .

It is not a de Polignac number, because 45390393 - 2¹⁰ = 45389369 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45390353) 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 11 ways as a sum of consecutive naturals, for example, 2680 + ... + 9897.

It is an arithmetic number, because the mean of its divisors is an integer number (5477719).

Almost surely, 2^45390393 is an apocalyptic number.

It is an amenable number.

45390393 is a deficient number, since it is larger than the sum of its proper divisors (20342235).

45390393 is a wasteful number, since it uses less digits than its factorization.

45390393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984 (or 12981 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 45390393 is about 6737.2392713930. The cubic root of 45390393 is about 356.7149526537.

The spelling of 45390393 in words is "forty-five million, three hundred ninety thousand, three hundred ninety-three".