6299820 has 72 divisors (see below), whose sum is σ = 19743360. Its totient is φ = 1624320.

The previous prime is 6299819. The next prime is 6299831. The reversal of 6299820 is 289926.

6299820 is a `hidden beast` number, since 629 + 9 + 8 + 20 = 666.

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

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5016 + ... + 6144.

Almost surely, 2^6299820 is an apocalyptic number.

6299820 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 6299820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9871680).

6299820 is an abundant number, since it is smaller than the sum of its proper divisors (13443540).

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

6299820 is a wasteful number, since it uses less digits than its factorization.

6299820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6299820 is about 2509.9442224878. The cubic root of 6299820 is about 184.6897160616.

The spelling of 6299820 in words is "six million, two hundred ninety-nine thousand, eight hundred twenty".