45239845 has 8 divisors (see below), whose sum is σ = 62043264. Its totient is φ = 31021584.

The previous prime is 45239837. The next prime is 45239867. The reversal of 45239845 is 54893254.

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

It is a cyclic number.

It is not a de Polignac number, because 45239845 - 2³ = 45239837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45239798 and 45239807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646249 + ... + 646318.

It is an arithmetic number, because the mean of its divisors is an integer number (7755408).

Almost surely, 2^45239845 is an apocalyptic number.

It is an amenable number.

45239845 is a deficient number, since it is larger than the sum of its proper divisors (16803419).

45239845 is a wasteful number, since it uses less digits than its factorization.

45239845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292579.

The product of its digits is 172800, while the sum is 40.

The square root of 45239845 is about 6726.0571659777. The cubic root of 45239845 is about 356.3201392627.

The spelling of 45239845 in words is "forty-five million, two hundred thirty-nine thousand, eight hundred forty-five".