3890402039 has 4 divisors (see below), whose sum is σ = 3892638360. Its totient is φ = 3888165720.

The previous prime is 3890402023. The next prime is 3890402051. The reversal of 3890402039 is 9302040983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3890402039 - 2⁴ = 3890402023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3890401993 and 3890402011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890402539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115549 + ... + 1119030.

It is an arithmetic number, because the mean of its divisors is an integer number (973159590).

Almost surely, 2^3890402039 is an apocalyptic number.

3890402039 is a deficient number, since it is larger than the sum of its proper divisors (2236321).

3890402039 is a wasteful number, since it uses less digits than its factorization.

3890402039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236320.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3890402039 is about 62373.0874576528. The cubic root of 3890402039 is about 1572.7685930629.

The spelling of 3890402039 in words is "three billion, eight hundred ninety million, four hundred two thousand, thirty-nine".