3620707920 has 60 divisors (see below), whose sum is σ = 12159546516. Its totient is φ = 965521920.

The previous prime is 3620707877. The next prime is 3620707931. The reversal of 3620707920 is 297070263.

3620707920 is a `hidden beast` number, since 3 + 620 + 7 + 0 + 7 + 9 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1773083664 + 1847624256 = 42108^2 + 42984^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2513661 + ... + 2515100.

Almost surely, 2^3620707920 is an apocalyptic number.

3620707920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3620707920 is an abundant number, since it is smaller than the sum of its proper divisors (8538838596).

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

3620707920 is a wasteful number, since it uses less digits than its factorization.

3620707920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028780 (or 5028771 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 3620707920 is about 60172.3185526368. The cubic root of 3620707920 is about 1535.5518915810.

The spelling of 3620707920 in words is "three billion, six hundred twenty million, seven hundred seven thousand, nine hundred twenty".