3898768720 has 320 divisors, whose sum is σ = 11879239680. Its totient is φ = 1154764800.

The previous prime is 3898768703. The next prime is 3898768721. The reversal of 3898768720 is 278678983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898768721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10859901 + ... + 10860259.

It is an arithmetic number, because the mean of its divisors is an integer number (37122624).

Almost surely, 2^3898768720 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 3898768720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5939619840).

3898768720 is an abundant number, since it is smaller than the sum of its proper divisors (7980470960).

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

3898768720 is a wasteful number, since it uses less digits than its factorization.

3898768720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 58.

The square root of 3898768720 is about 62440.1210761158. The cubic root of 3898768720 is about 1573.8952487919.

The spelling of 3898768720 in words is "three billion, eight hundred ninety-eight million, seven hundred sixty-eight thousand, seven hundred twenty".