3153720640 has 112 divisors (see below), whose sum is σ = 8606479104. Its totient is φ = 1078272000.

The previous prime is 3153720637. The next prime is 3153720649. The reversal of 3153720640 is 460273513.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3153720649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 896485 + ... + 899995.

Almost surely, 2^3153720640 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 3153720640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4303239552).

3153720640 is an abundant number, since it is smaller than the sum of its proper divisors (5452758464).

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

3153720640 is a wasteful number, since it uses less digits than its factorization.

3153720640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936 (or 3926 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3153720640 is about 56157.9971152818. The cubic root of 3153720640 is about 1466.4741326696.

The spelling of 3153720640 in words is "three billion, one hundred fifty-three million, seven hundred twenty thousand, six hundred forty".