39991302 has 96 divisors (see below), whose sum is σ = 99590400. Its totient is φ = 11508480.

The previous prime is 39991291. The next prime is 39991331. The reversal of 39991302 is 20319993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268324 + ... + 268472.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400).

Almost surely, 2^39991302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39991302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49795200).

39991302 is an abundant number, since it is smaller than the sum of its proper divisors (59599098).

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

39991302 is a wasteful number, since it uses less digits than its factorization.

39991302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 39991302 is about 6323.8676456738. The cubic root of 39991302 is about 341.9703985870.

The spelling of 39991302 in words is "thirty-nine million, nine hundred ninety-one thousand, three hundred two".