39869046 has 72 divisors (see below), whose sum is σ = 106437240. Its totient is φ = 10717056.

The previous prime is 39869003. The next prime is 39869047. The reversal of 39869046 is 64096893.

It is a junction number, because it is equal to n+sod(n) for n = 39868992 and 39869010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39869047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13665 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (1478295).

Almost surely, 2^39869046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39869046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53218620).

39869046 is an abundant number, since it is smaller than the sum of its proper divisors (66568194).

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

39869046 is a wasteful number, since it uses less digits than its factorization.

39869046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 39869046 is about 6314.1940103231. The cubic root of 39869046 is about 341.6215676609.

The spelling of 39869046 in words is "thirty-nine million, eight hundred sixty-nine thousand, forty-six".