39450045 has 16 divisors (see below), whose sum is σ = 63256320. Its totient is φ = 20994624.

The previous prime is 39450041. The next prime is 39450079. The reversal of 39450045 is 54005493.

It is not a de Polignac number, because 39450045 - 2² = 39450041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39449994 and 39450021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39450041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5052 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (3953520).

Almost surely, 2^39450045 is an apocalyptic number.

It is an amenable number.

39450045 is a deficient number, since it is larger than the sum of its proper divisors (23806275).

39450045 is a wasteful number, since it uses less digits than its factorization.

39450045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 39450045 is about 6280.9270812516. The cubic root of 39450045 is about 340.4206011596.

The spelling of 39450045 in words is "thirty-nine million, four hundred fifty thousand, forty-five".