39894426 has 72 divisors (see below), whose sum is σ = 102391380. Its totient is φ = 11151360.

The previous prime is 39894419. The next prime is 39894467. The reversal of 39894426 is 62449893.

39894426 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 2 ways, for example, as 29648025 + 10246401 = 5445^2 + 3201^2 .

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 35 ways as a sum of consecutive naturals, for example, 27610 + ... + 29018.

Almost surely, 2^39894426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39894426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51195690).

39894426 is an abundant number, since it is smaller than the sum of its proper divisors (62496954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39894426 is a wasteful number, since it uses less digits than its factorization.

39894426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1438 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 39894426 is about 6316.2034482749. The cubic root of 39894426 is about 341.6940425682.

The spelling of 39894426 in words is "thirty-nine million, eight hundred ninety-four thousand, four hundred twenty-six".