45085439 has 24 divisors (see below), whose sum is σ = 55070208. Its totient is φ = 36756720.

The previous prime is 45085433. The next prime is 45085483. The reversal of 45085439 is 93458054.

It is a happy number.

It is not a de Polignac number, because 45085439 - 2²⁴ = 28308223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45085433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101552 + ... + 101994.

It is an arithmetic number, because the mean of its divisors is an integer number (2294592).

Almost surely, 2^45085439 is an apocalyptic number.

45085439 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

45085439 is a deficient number, since it is larger than the sum of its proper divisors (9984769).

45085439 is a wasteful number, since it uses less digits than its factorization.

45085439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 45085439 is about 6714.5691596706. The cubic root of 45085439 is about 355.9142973221.

The spelling of 45085439 in words is "forty-five million, eighty-five thousand, four hundred thirty-nine".