3720640560 has 240 divisors, whose sum is σ = 14449762656. Its totient is φ = 784982016.

The previous prime is 3720640559. The next prime is 3720640577. The reversal of 3720640560 is 650460273.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×3720640560² = 27686332353434227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140712 + ... + 165048.

Almost surely, 2^3720640560 is an apocalyptic number.

3720640560 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 3720640560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7224881328).

3720640560 is an abundant number, since it is smaller than the sum of its proper divisors (10729122096).

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

3720640560 is a wasteful number, since it uses less digits than its factorization.

3720640560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24380 (or 24367 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 3720640560 is about 60997.0536993386. The cubic root of 3720640560 is about 1549.5511096918.

The spelling of 3720640560 in words is "three billion, seven hundred twenty million, six hundred forty thousand, five hundred sixty".