39842980 has 24 divisors (see below), whose sum is σ = 85712760. Its totient is φ = 15548160.

The previous prime is 39842953. The next prime is 39843007. The reversal of 39842980 is 8924893.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39842953) and next prime (39843007).

It can be written as a sum of positive squares in 4 ways, for example, as 605284 + 39237696 = 778^2 + 6264^2 .

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23475 + ... + 25114.

It is an arithmetic number, because the mean of its divisors is an integer number (3571365).

Almost surely, 2^39842980 is an apocalyptic number.

It is an amenable number.

39842980 is an abundant number, since it is smaller than the sum of its proper divisors (45869780).

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

39842980 is a wasteful number, since it uses less digits than its factorization.

39842980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48639 (or 48637 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 39842980 is about 6312.1295930930. The cubic root of 39842980 is about 341.5471017951.

The spelling of 39842980 in words is "thirty-nine million, eight hundred forty-two thousand, nine hundred eighty".