3622661844 has 24 divisors (see below), whose sum is σ = 8457166368. Its totient is φ = 1206941280.

The previous prime is 3622661843. The next prime is 3622661857. The reversal of 3622661844 is 4481662263.

It is a junction number, because it is equal to n+sod(n) for n = 3622661796 and 3622661805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3622661843) 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, 51622 + ... + 99549.

It is an arithmetic number, because the mean of its divisors is an integer number (352381932).

Almost surely, 2^3622661844 is an apocalyptic number.

It is an amenable number.

3622661844 is an abundant number, since it is smaller than the sum of its proper divisors (4834504524).

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

3622661844 is a wasteful number, since it uses less digits than its factorization.

3622661844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153175 (or 153173 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 3622661844 is about 60188.5524331662. The cubic root of 3622661844 is about 1535.8280633690.

The spelling of 3622661844 in words is "three billion, six hundred twenty-two million, six hundred sixty-one thousand, eight hundred forty-four".