3605983920 has 840 divisors, whose sum is σ = 16006871328. Its totient is φ = 739031040.

The previous prime is 3605983919. The next prime is 3605983937. The reversal of 3605983920 is 293895063.

3605983920 is a `hidden beast` number, since 3 + 6 + 0 + 598 + 39 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 49397004 + ... + 49397076.

Almost surely, 2^3605983920 is an apocalyptic number.

3605983920 is a gapful number since it is divisible by the number (30) 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 3605983920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8003435664).

3605983920 is an abundant number, since it is smaller than the sum of its proper divisors (12400887408).

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

3605983920 is a wasteful number, since it uses less digits than its factorization.

3605983920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 3605983920 is about 60049.8452953877. The cubic root of 3605983920 is about 1533.4675677483.

The spelling of 3605983920 in words is "three billion, six hundred five million, nine hundred eighty-three thousand, nine hundred twenty".