6220040646 has 32 divisors (see below), whose sum is σ = 12557242368. Its totient is φ = 2053870560.

The previous prime is 6220040639. The next prime is 6220040681. The reversal of 6220040646 is 6460400226.

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, 520636 + ... + 532448.

It is an arithmetic number, because the mean of its divisors is an integer number (392413824).

Almost surely, 2^6220040646 is an apocalyptic number.

6220040646 is an abundant number, since it is smaller than the sum of its proper divisors (6337201722).

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

6220040646 is a wasteful number, since it uses less digits than its factorization.

6220040646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12636.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6220040646 is about 78867.2342991689. The cubic root of 6220040646 is about 1839.0678018635.

The spelling of 6220040646 in words is "six billion, two hundred twenty million, forty thousand, six hundred forty-six".