6221440415 has 16 divisors (see below), whose sum is σ = 7558198560. Its totient is φ = 4915797120.

The previous prime is 6221440399. The next prime is 6221440439. The reversal of 6221440415 is 5140441226.

6221440415 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6221440415 - 2⁴ = 6221440399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154760 + ... + 190770.

It is an arithmetic number, because the mean of its divisors is an integer number (472387410).

Almost surely, 2^6221440415 is an apocalyptic number.

6221440415 is a deficient number, since it is larger than the sum of its proper divisors (1336758145).

6221440415 is a wasteful number, since it uses less digits than its factorization.

6221440415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36442.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6221440415 is about 78876.1080112349. The cubic root of 6221440415 is about 1839.2057472115.

The spelling of 6221440415 in words is "six billion, two hundred twenty-one million, four hundred forty thousand, four hundred fifteen".