6639060 has 24 divisors (see below), whose sum is σ = 18589536. Its totient is φ = 1770400.

The previous prime is 6639049. The next prime is 6639067. The reversal of 6639060 is 609366.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6639067) 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, 55266 + ... + 55385.

It is an arithmetic number, because the mean of its divisors is an integer number (774564).

Almost surely, 2^6639060 is an apocalyptic number.

6639060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6639060 is an abundant number, since it is smaller than the sum of its proper divisors (11950476).

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

6639060 is a wasteful number, since it uses less digits than its factorization.

6639060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110663 (or 110661 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 6639060 is about 2576.6373435158. The cubic root of 6639060 is about 187.9470576743.

The spelling of 6639060 in words is "six million, six hundred thirty-nine thousand, sixty".