6366780 has 144 divisors (see below), whose sum is σ = 22923264. Its totient is φ = 1399680.

The previous prime is 6366779. The next prime is 6366781. The reversal of 6366780 is 876636.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6366779) and next prime (6366781).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6366781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38979 + ... + 39141.

Almost surely, 2^6366780 is an apocalyptic number.

6366780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6366780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11461632).

6366780 is an abundant number, since it is smaller than the sum of its proper divisors (16556484).

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

6366780 is a wasteful number, since it uses less digits than its factorization.

6366780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6366780 is about 2523.2479069644. The cubic root of 6366780 is about 185.3417593027.

The spelling of 6366780 in words is "six million, three hundred sixty-six thousand, seven hundred eighty".