6221290 has 8 divisors (see below), whose sum is σ = 11198340. Its totient is φ = 2488512.

The previous prime is 6221287. The next prime is 6221309. The reversal of 6221290 is 921226.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6215049 + 6241 = 2493^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311055 + ... + 311074.

Almost surely, 2^6221290 is an apocalyptic number.

6221290 is a deficient number, since it is larger than the sum of its proper divisors (4977050).

6221290 is a wasteful number, since it uses less digits than its factorization.

6221290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622136.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6221290 is about 2494.2513906982. The cubic root of 6221290 is about 183.9190925008.

The spelling of 6221290 in words is "six million, two hundred twenty-one thousand, two hundred ninety".