39980404 has 6 divisors (see below), whose sum is σ = 69965714. Its totient is φ = 19990200.

The previous prime is 39980401. The next prime is 39980407. The reversal of 39980404 is 40408993.

It is an interprime number because it is at equal distance from previous prime (39980401) and next prime (39980407).

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 19820304 = 4490^2 + 4452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39980401) 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 as a sum of consecutive naturals, namely, 4997547 + ... + 4997554.

Almost surely, 2^39980404 is an apocalyptic number.

It is an amenable number.

39980404 is a deficient number, since it is larger than the sum of its proper divisors (29985310).

39980404 is a wasteful number, since it uses less digits than its factorization.

39980404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995105 (or 9995103 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 39980404 is about 6323.0059307263. The cubic root of 39980404 is about 341.9393323985.

The spelling of 39980404 in words is "thirty-nine million, nine hundred eighty thousand, four hundred four".