3655474368 has 448 divisors, whose sum is σ = 13043294208. Its totient is φ = 875888640.

The previous prime is 3655474357. The next prime is 3655474369. The reversal of 3655474368 is 8634745563.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (51).

Its product of digits (7257600) is a multiple of the sum of its prime factors (480).

It is a self number, because there is not a number n which added to its sum of digits gives 3655474368.

It is not an unprimeable number, because it can be changed into a prime (3655474369) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9207546 + ... + 9207942.

It is an arithmetic number, because the mean of its divisors is an integer number (29114496).

Almost surely, 2^3655474368 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 3655474368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6521647104).

3655474368 is an abundant number, since it is smaller than the sum of its proper divisors (9387819840).

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

3655474368 is a wasteful number, since it uses less digits than its factorization.

3655474368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 51.

The square root of 3655474368 is about 60460.5190847713. The cubic root of 3655474368 is about 1540.4510917824.

The spelling of 3655474368 in words is "three billion, six hundred fifty-five million, four hundred seventy-four thousand, three hundred sixty-eight".