6399030 has 32 divisors (see below), whose sum is σ = 16754688. Its totient is φ = 1551200.

The previous prime is 6399023. The next prime is 6399031. The reversal of 6399030 is 309936.

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 (6399031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9366 + ... + 10025.

It is an arithmetic number, because the mean of its divisors is an integer number (523584).

Almost surely, 2^6399030 is an apocalyptic number.

6399030 is an abundant number, since it is smaller than the sum of its proper divisors (10355658).

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

6399030 is a wasteful number, since it uses less digits than its factorization.

6399030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19412.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 6399030 is about 2529.6304077869. The cubic root of 6399030 is about 185.6541729932.

It can be divided in two parts, 639 and 9030, that added together give a palindrome (9669).

The spelling of 6399030 in words is "six million, three hundred ninety-nine thousand, thirty".