6622707390 has 128 divisors (see below), whose sum is σ = 17448238080. Its totient is φ = 1598994432.

The previous prime is 6622707389. The next prime is 6622707397. The reversal of 6622707390 is 937072266.

It is a super-2 number, since 2×6622707390² = 87720506347121224200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622707397) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4538481 + ... + 4539939.

It is an arithmetic number, because the mean of its divisors is an integer number (136314360).

Almost surely, 2^6622707390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622707390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8724119040).

6622707390 is an abundant number, since it is smaller than the sum of its proper divisors (10825530690).

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

6622707390 is a wasteful number, since it uses less digits than its factorization.

6622707390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 6622707390 is about 81380.0183706050. The cubic root of 6622707390 is about 1877.9262056176.

The spelling of 6622707390 in words is "six billion, six hundred twenty-two million, seven hundred seven thousand, three hundred ninety".