45740409 has 16 divisors (see below), whose sum is σ = 71649984. Its totient is φ = 25588800.

The previous prime is 45740389. The next prime is 45740411. The reversal of 45740409 is 90404754.

It is a happy number.

It is not a de Polignac number, because 45740409 - 2⁵ = 45740377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 45740409.

It is not an unprimeable number, because it can be changed into a prime (45740459) 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, 52882 + ... + 53739.

It is an arithmetic number, because the mean of its divisors is an integer number (4478124).

Almost surely, 2^45740409 is an apocalyptic number.

It is an amenable number.

45740409 is a deficient number, since it is larger than the sum of its proper divisors (25909575).

45740409 is a wasteful number, since it uses less digits than its factorization.

45740409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106648.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 45740409 is about 6763.1656049516. The cubic root of 45740409 is about 357.6295101867.

The spelling of 45740409 in words is "forty-five million, seven hundred forty thousand, four hundred nine".