45039494 has 24 divisors (see below), whose sum is σ = 74269440. Its totient is φ = 20456576.

The previous prime is 45039493. The next prime is 45039509. The reversal of 45039494 is 49493054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45039493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15419 + ... + 18105.

It is an arithmetic number, because the mean of its divisors is an integer number (3094560).

Almost surely, 2^45039494 is an apocalyptic number.

45039494 is a deficient number, since it is larger than the sum of its proper divisors (29229946).

45039494 is a wasteful number, since it uses less digits than its factorization.

45039494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 45039494 is about 6711.1469958570. The cubic root of 45039494 is about 355.7933562773.

The spelling of 45039494 in words is "forty-five million, thirty-nine thousand, four hundred ninety-four".