6221490 has 64 divisors (see below), whose sum is σ = 17262720. Its totient is φ = 1418240.

The previous prime is 6221489. The next prime is 6221497. The reversal of 6221490 is 941226.

It is a self number, because there is not a number n which added to its sum of digits gives 6221490.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5056 + ... + 6164.

It is an arithmetic number, because the mean of its divisors is an integer number (269730).

Almost surely, 2^6221490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6221490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8631360).

6221490 is an abundant number, since it is smaller than the sum of its proper divisors (11041230).

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

6221490 is a wasteful number, since it uses less digits than its factorization.

6221490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6221490 is about 2494.2914825657. The cubic root of 6221490 is about 183.9210633367.

It can be divided in two parts, 622 and 1490, that added together give a palindrome (2112).

The spelling of 6221490 in words is "six million, two hundred twenty-one thousand, four hundred ninety".