39874240 has 84 divisors (see below), whose sum is σ = 110496096. Its totient is φ = 13665792.

The previous prime is 39874229. The next prime is 39874267. The reversal of 39874240 is 4247893.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39874240.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14409 + ... + 16951.

Almost surely, 2^39874240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55248048).

39874240 is an abundant number, since it is smaller than the sum of its proper divisors (70621856).

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

39874240 is a wasteful number, since it uses less digits than its factorization.

39874240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 39874240 is about 6314.6052924945. The cubic root of 39874240 is about 341.6364021048.

The spelling of 39874240 in words is "thirty-nine million, eight hundred seventy-four thousand, two hundred forty".