6221001436 has 24 divisors (see below), whose sum is σ = 11996855024. Its totient is φ = 2804457600.

The previous prime is 6221001433. The next prime is 6221001443. The reversal of 6221001436 is 6341001226.

It is a self number, because there is not a number n which added to its sum of digits gives 6221001436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221001433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388865 + ... + 1393336.

Almost surely, 2^6221001436 is an apocalyptic number.

It is an amenable number.

6221001436 is a deficient number, since it is larger than the sum of its proper divisors (5775853588).

6221001436 is a wasteful number, since it uses less digits than its factorization.

6221001436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782261 (or 2782259 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6221001436 is about 78873.3252500489. The cubic root of 6221001436 is about 1839.1624886500.

The spelling of 6221001436 in words is "six billion, two hundred twenty-one million, one thousand, four hundred thirty-six".