3622206640 has 80 divisors (see below), whose sum is σ = 9101167488. Its totient is φ = 1332753408.

The previous prime is 3622206611. The next prime is 3622206671. The reversal of 3622206640 is 466022263.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 298777 + ... + 310663.

Almost surely, 2^3622206640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3622206640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4550583744).

3622206640 is an abundant number, since it is smaller than the sum of its proper divisors (5478960848).

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

3622206640 is a wasteful number, since it uses less digits than its factorization.

3622206640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12206 (or 12200 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 3622206640 is about 60184.7708311663. The cubic root of 3622206640 is about 1535.7637327384.

The spelling of 3622206640 in words is "three billion, six hundred twenty-two million, two hundred six thousand, six hundred forty".