3620681008 has 80 divisors (see below), whose sum is σ = 8189475840. Its totient is φ = 1518536448.

The previous prime is 3620680993. The next prime is 3620681011. The reversal of 3620681008 is 8001860263.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4315053 + ... + 4315891.

It is an arithmetic number, because the mean of its divisors is an integer number (102368448).

Almost surely, 2^3620681008 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 3620681008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4094737920).

3620681008 is an abundant number, since it is smaller than the sum of its proper divisors (4568794832).

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

3620681008 is a wasteful number, since it uses less digits than its factorization.

3620681008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 3620681008 is about 60172.0949277986. The cubic root of 3620681008 is about 1535.5480870879.

The spelling of 3620681008 in words is "three billion, six hundred twenty million, six hundred eighty-one thousand, eight".