3626643020 has 192 divisors, whose sum is σ = 10327274496. Its totient is φ = 1033067520.

The previous prime is 3626642989. The next prime is 3626643049. The reversal of 3626643020 is 203466263.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2141294 + ... + 2142986.

It is an arithmetic number, because the mean of its divisors is an integer number (53787888).

Almost surely, 2^3626643020 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 3626643020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5163637248).

3626643020 is an abundant number, since it is smaller than the sum of its proper divisors (6700631476).

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

3626643020 is a wasteful number, since it uses less digits than its factorization.

3626643020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 3626643020 is about 60221.6158866565. The cubic root of 3626643020 is about 1536.3904641320.

It can be divided in two parts, 3626 and 643020, that added together give a palindrome (646646).

The spelling of 3626643020 in words is "three billion, six hundred twenty-six million, six hundred forty-three thousand, twenty".