39946842 has 48 divisors (see below), whose sum is σ = 94997448. Its totient is φ = 12055680.

The previous prime is 39946783. The next prime is 39946853. The reversal of 39946842 is 24864993.

It can be written as a sum of positive squares in 4 ways, for example, as 35748441 + 4198401 = 5979^2 + 2049^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10792 + ... + 14012.

Almost surely, 2^39946842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39946842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47498724).

39946842 is an abundant number, since it is smaller than the sum of its proper divisors (55050606).

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

39946842 is a wasteful number, since it uses less digits than its factorization.

39946842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295 (or 3292 counting only the distinct ones).

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

The square root of 39946842 is about 6320.3514142807. The cubic root of 39946842 is about 341.8436240056.

The spelling of 39946842 in words is "thirty-nine million, nine hundred forty-six thousand, eight hundred forty-two".