45093939 has 8 divisors (see below), whose sum is σ = 65591232. Its totient is φ = 27329640.

The previous prime is 45093929. The next prime is 45093953. The reversal of 45093939 is 93939054.

It is a happy number.

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

It is not a de Polignac number, because 45093939 - 2⁸ = 45093683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45093939.

It is not an unprimeable number, because it can be changed into a prime (45093929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683209 + ... + 683274.

It is an arithmetic number, because the mean of its divisors is an integer number (8198904).

Almost surely, 2^45093939 is an apocalyptic number.

45093939 is a deficient number, since it is larger than the sum of its proper divisors (20497293).

45093939 is a wasteful number, since it uses less digits than its factorization.

45093939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366497.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 45093939 is about 6715.2020818439. The cubic root of 45093939 is about 355.9366628684.

It can be divided in two parts, 4509 and 3939, that added together give a palindrome (8448).

The spelling of 45093939 in words is "forty-five million, ninety-three thousand, nine hundred thirty-nine".