6339990 has 16 divisors (see below), whose sum is σ = 15216048. Its totient is φ = 1690656.

The previous prime is 6339989. The next prime is 6340013. The reversal of 6339990 is 999336.

It is a congruent number.

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, 105637 + ... + 105696.

It is an arithmetic number, because the mean of its divisors is an integer number (951003).

Almost surely, 2^6339990 is an apocalyptic number.

6339990 is an abundant number, since it is smaller than the sum of its proper divisors (8876058).

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

6339990 is a wasteful number, since it uses less digits than its factorization.

6339990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211343.

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 6339990 is about 2517.9336766484. The cubic root of 6339990 is about 185.0814348080.

The spelling of 6339990 in words is "six million, three hundred thirty-nine thousand, nine hundred ninety".