39894425 has 12 divisors (see below), whose sum is σ = 50404140. Its totient is φ = 31312320.

The previous prime is 39894419. The next prime is 39894467. The reversal of 39894425 is 52449893.

39894425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 405769 + 39488656 = 637^2 + 6284^2 .

It is not a de Polignac number, because 39894425 - 2¹⁶ = 39828889 is a prime.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 13730 + ... + 16379.

It is an arithmetic number, because the mean of its divisors is an integer number (4200345).

Almost surely, 2^39894425 is an apocalyptic number.

It is an amenable number.

39894425 is a deficient number, since it is larger than the sum of its proper divisors (10509715).

39894425 is a wasteful number, since it uses less digits than its factorization.

39894425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30172 (or 30167 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 39894425 is about 6316.2033691134. The cubic root of 39894425 is about 341.6940397132.

The spelling of 39894425 in words is "thirty-nine million, eight hundred ninety-four thousand, four hundred twenty-five".