6231620 has 72 divisors (see below), whose sum is σ = 14864640. Its totient is φ = 2185920.

The previous prime is 6231613. The next prime is 6231623. The reversal of 6231620 is 261326.

6231620 = T₅₉ + T₆₀ + ... + T₃₃₄.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 6231592 and 6231601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6231623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201005 + ... + 201035.

Almost surely, 2^6231620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6231620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7432320).

6231620 is an abundant number, since it is smaller than the sum of its proper divisors (8633020).

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

6231620 is a wasteful number, since it uses less digits than its factorization.

6231620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 6231620 is about 2496.3212934236. The cubic root of 6231620 is about 184.0208309749.

Adding to 6231620 its reverse (261326), we get a palindrome (6492946).

The spelling of 6231620 in words is "six million, two hundred thirty-one thousand, six hundred twenty".