45739309 has 16 divisors (see below), whose sum is σ = 57254400. Its totient is φ = 35498160.

The previous prime is 45739301. The next prime is 45739321. The reversal of 45739309 is 90393754.

It is a cyclic number.

It is not a de Polignac number, because 45739309 - 2³ = 45739301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45739301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20742 + ... + 22840.

It is an arithmetic number, because the mean of its divisors is an integer number (3578400).

Almost surely, 2^45739309 is an apocalyptic number.

It is an amenable number.

45739309 is a deficient number, since it is larger than the sum of its proper divisors (11515091).

45739309 is a wasteful number, since it uses less digits than its factorization.

45739309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 45739309 is about 6763.0842815982. The cubic root of 45739309 is about 357.6266433153.

The spelling of 45739309 in words is "forty-five million, seven hundred thirty-nine thousand, three hundred nine".