39980976 has 80 divisors (see below), whose sum is σ = 118754304. Its totient is φ = 11354112.

The previous prime is 39980971. The next prime is 39980981. The reversal of 39980976 is 67908993.

It is an interprime number because it is at equal distance from previous prime (39980971) and next prime (39980981).

It is not an unprimeable number, because it can be changed into a prime (39980971) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 86121 + ... + 86583.

Almost surely, 2^39980976 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 39980976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59377152).

39980976 is an abundant number, since it is smaller than the sum of its proper divisors (78773328).

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

39980976 is a wasteful number, since it uses less digits than its factorization.

39980976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 39980976 is about 6323.0511622159. The cubic root of 39980976 is about 341.9409631004.

The spelling of 39980976 in words is "thirty-nine million, nine hundred eighty thousand, nine hundred seventy-six".