3640604968 has 128 divisors (see below), whose sum is σ = 9196830720. Its totient is φ = 1304789760.

The previous prime is 3640604923. The next prime is 3640604977. The reversal of 3640604968 is 8694060463.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3066471 + ... + 3067657.

It is an arithmetic number, because the mean of its divisors is an integer number (71850240).

Almost surely, 2^3640604968 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 3640604968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4598415360).

3640604968 is an abundant number, since it is smaller than the sum of its proper divisors (5556225752).

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

3640604968 is a wasteful number, since it uses less digits than its factorization.

3640604968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 3640604968 is about 60337.4259311748. The cubic root of 3640604968 is about 1538.3595518737.

The spelling of 3640604968 in words is "three billion, six hundred forty million, six hundred four thousand, nine hundred sixty-eight".