45389739 has 4 divisors (see below), whose sum is σ = 60519656. Its totient is φ = 30259824.

The previous prime is 45389737. The next prime is 45389749. The reversal of 45389739 is 93798354.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45389739 - 2¹ = 45389737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45389737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7564954 + ... + 7564959.

It is an arithmetic number, because the mean of its divisors is an integer number (15129914).

Almost surely, 2^45389739 is an apocalyptic number.

45389739 is a deficient number, since it is larger than the sum of its proper divisors (15129917).

45389739 is a wasteful number, since it uses less digits than its factorization.

45389739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15129916.

The product of its digits is 816480, while the sum is 48.

The square root of 45389739 is about 6737.1907350171. The cubic root of 45389739 is about 356.7132394226.

The spelling of 45389739 in words is "forty-five million, three hundred eighty-nine thousand, seven hundred thirty-nine".