3652691808 has 216 divisors, whose sum is σ = 10601498376. Its totient is φ = 1100881920.

The previous prime is 3652691771. The next prime is 3652691827. The reversal of 3652691808 is 8081962563.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26661916 + ... + 26662052.

It is an arithmetic number, because the mean of its divisors is an integer number (49081011).

Almost surely, 2^3652691808 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 3652691808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5300749188).

3652691808 is an abundant number, since it is smaller than the sum of its proper divisors (6948806568).

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

3652691808 is a wasteful number, since it uses less digits than its factorization.

3652691808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 3652691808 is about 60437.5033236814. The cubic root of 3652691808 is about 1540.0601269603.

The spelling of 3652691808 in words is "three billion, six hundred fifty-two million, six hundred ninety-one thousand, eight hundred eight".