3031745720 has 16 divisors (see below), whose sum is σ = 6821427960. Its totient is φ = 1212698272.

The previous prime is 3031745681. The next prime is 3031745723. The reversal of 3031745720 is 275471303.

It is a super-2 number, since 2×3031745720² = 18382964221476636800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031745723) 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, 37896782 + ... + 37896861.

Almost surely, 2^3031745720 is an apocalyptic number.

It is an amenable number.

3031745720 is an abundant number, since it is smaller than the sum of its proper divisors (3789682240).

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

3031745720 is a wasteful number, since it uses less digits than its factorization.

3031745720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75793654 (or 75793650 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 3031745720 is about 55061.2905769561. The cubic root of 3031745720 is about 1447.3189809061.

The spelling of 3031745720 in words is "three billion, thirty-one million, seven hundred forty-five thousand, seven hundred twenty".