39450385 has 16 divisors (see below), whose sum is σ = 51515856. Its totient is φ = 28827648.

The previous prime is 39450379. The next prime is 39450431. The reversal of 39450385 is 58305493.

It can be written as a sum of positive squares in 8 ways, for example, as 99856 + 39350529 = 316^2 + 6273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39450385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177 + ... + 9433.

It is an arithmetic number, because the mean of its divisors is an integer number (3219741).

Almost surely, 2^39450385 is an apocalyptic number.

It is an amenable number.

39450385 is a deficient number, since it is larger than the sum of its proper divisors (12065471).

39450385 is a wasteful number, since it uses less digits than its factorization.

39450385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 39450385 is about 6280.9541472614. The cubic root of 39450385 is about 340.4215791278.

The spelling of 39450385 in words is "thirty-nine million, four hundred fifty thousand, three hundred eighty-five".