39974284 has 12 divisors (see below), whose sum is σ = 79948624. Its totient is φ = 17131824.

The previous prime is 39974279. The next prime is 39974287. The reversal of 39974284 is 48247993.

It is a happy number.

39974284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

39974284 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (39974287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 713799 + ... + 713854.

Almost surely, 2^39974284 is an apocalyptic number.

It is an amenable number.

39974284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39974284 is a wasteful number, since it uses less digits than its factorization.

39974284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427664 (or 1427662 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 39974284 is about 6322.5219651655. The cubic root of 39974284 is about 341.9218840547.

It can be divided in two parts, 3997 and 4284, that added together give a square (8281 = 91²).

The spelling of 39974284 in words is "thirty-nine million, nine hundred seventy-four thousand, two hundred eighty-four".