3040639987 has 8 divisors (see below), whose sum is σ = 3790927872. Its totient is φ = 2369329800.

The previous prime is 3040639957. The next prime is 3040640021. The reversal of 3040639987 is 7899360403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3040639987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3040639987.

It is not an unprimeable number, because it can be changed into a prime (3040639957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19744339 + ... + 19744492.

It is an arithmetic number, because the mean of its divisors is an integer number (473865984).

Almost surely, 2^3040639987 is an apocalyptic number.

3040639987 is a deficient number, since it is larger than the sum of its proper divisors (750287885).

3040639987 is a wasteful number, since it uses less digits than its factorization.

3040639987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39488849.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3040639987 is about 55141.9983950527. The cubic root of 3040639987 is about 1448.7329378267.

The spelling of 3040639987 in words is "three billion, forty million, six hundred thirty-nine thousand, nine hundred eighty-seven".