3658905572 has 48 divisors (see below), whose sum is σ = 7631920128. Its totient is φ = 1501839360.

The previous prime is 3658905533. The next prime is 3658905583. The reversal of 3658905572 is 2755098563.

It is a self number, because there is not a number n which added to its sum of digits gives 3658905572.

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, 62468 + ... + 105924.

It is an arithmetic number, because the mean of its divisors is an integer number (158998336).

Almost surely, 2^3658905572 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 3658905572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3815960064).

3658905572 is an abundant number, since it is smaller than the sum of its proper divisors (3973014556).

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

3658905572 is a wasteful number, since it uses less digits than its factorization.

3658905572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43596 (or 43594 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 50.

The square root of 3658905572 is about 60488.8880043269. Note that the first 3 decimals coincide. The cubic root of 3658905572 is about 1540.9329215446.

The spelling of 3658905572 in words is "three billion, six hundred fifty-eight million, nine hundred five thousand, five hundred seventy-two".