3621844722 has 16 divisors (see below), whose sum is σ = 7397811072. Its totient is φ = 1181594640.

The previous prime is 3621844711. The next prime is 3621844727. The reversal of 3621844722 is 2274481263.

It is a happy number.

It is a super-3 number, since 3×3621844722³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3621844727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421429 + ... + 6421992.

It is an arithmetic number, because the mean of its divisors is an integer number (462363192).

Almost surely, 2^3621844722 is an apocalyptic number.

3621844722 is an abundant number, since it is smaller than the sum of its proper divisors (3775966350).

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

3621844722 is a wasteful number, since it uses less digits than its factorization.

3621844722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843473.

The product of its digits is 129024, while the sum is 39.

The square root of 3621844722 is about 60181.7640319723. The cubic root of 3621844722 is about 1535.7125816854.

The spelling of 3621844722 in words is "three billion, six hundred twenty-one million, eight hundred forty-four thousand, seven hundred twenty-two".