39940594 has 4 divisors (see below), whose sum is σ = 59910894. Its totient is φ = 19970296.

The previous prime is 39940573. The next prime is 39940597. The reversal of 39940594 is 49504993.

39940594 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 22610025 + 17330569 = 4755^2 + 4163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39940594.

It is not an unprimeable number, because it can be changed into a prime (39940597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9985147 + ... + 9985150.

Almost surely, 2^39940594 is an apocalyptic number.

39940594 is a deficient number, since it is larger than the sum of its proper divisors (19970300).

39940594 is a wasteful number, since it uses less digits than its factorization.

39940594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19970299.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 39940594 is about 6319.8571186380. The cubic root of 39940594 is about 341.8258007333.

The spelling of 39940594 in words is "thirty-nine million, nine hundred forty thousand, five hundred ninety-four".