3920428512 has 480 divisors, whose sum is σ = 15490911744. Its totient is φ = 939340800.

The previous prime is 3920428471. The next prime is 3920428529. The reversal of 3920428512 is 2158240293.

It is a happy number.

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 79 ways as a sum of consecutive naturals, for example, 2593837 + ... + 2595347.

Almost surely, 2^3920428512 is an apocalyptic number.

3920428512 is a gapful number since it is divisible by the number (32) 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 3920428512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7745455872).

3920428512 is an abundant number, since it is smaller than the sum of its proper divisors (11570483232).

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

3920428512 is a wasteful number, since it uses less digits than its factorization.

3920428512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3920428512 is about 62613.3253549115. The cubic root of 3920428512 is about 1576.8044841862.

The spelling of 3920428512 in words is "three billion, nine hundred twenty million, four hundred twenty-eight thousand, five hundred twelve".