3658604544 has 448 divisors, whose sum is σ = 13211251200. Its totient is φ = 976748544.

The previous prime is 3658604497. The next prime is 3658604569. The reversal of 3658604544 is 4454068563.

3658604544 is a `hidden beast` number, since 36 + 5 + 8 + 604 + 5 + 4 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3658604544.

It is a congruent number.

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, 26320827 + ... + 26320965.

It is an arithmetic number, because the mean of its divisors is an integer number (29489400).

Almost surely, 2^3658604544 is an apocalyptic number.

3658604544 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3658604544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6605625600).

3658604544 is an abundant number, since it is smaller than the sum of its proper divisors (9552646656).

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

3658604544 is a wasteful number, since it uses less digits than its factorization.

3658604544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The square root of 3658604544 is about 60486.3996614115. The cubic root of 3658604544 is about 1540.8906614873.

The spelling of 3658604544 in words is "three billion, six hundred fifty-eight million, six hundred four thousand, five hundred forty-four".