3621840512 has 32 divisors (see below), whose sum is σ = 7220799300. Its totient is φ = 1809561600.

The previous prime is 3621840503. The next prime is 3621840517. The reversal of 3621840512 is 2150481263.

It can be written as a sum of positive squares in 2 ways, for example, as 2298627136 + 1323213376 = 47944^2 + 36376^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (3621840517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173012 + ... + 192812.

Almost surely, 2^3621840512 is an apocalyptic number.

3621840512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3621840512 is a deficient number, since it is larger than the sum of its proper divisors (3598958788).

3621840512 is a wasteful number, since it uses less digits than its factorization.

3621840512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244 (or 21232 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 3621840512 is about 60181.7290545893. The cubic root of 3621840512 is about 1535.7119866523.

The spelling of 3621840512 in words is "three billion, six hundred twenty-one million, eight hundred forty thousand, five hundred twelve".