3928018776 has 128 divisors (see below), whose sum is σ = 11620143360. Its totient is φ = 1092915200.

The previous prime is 3928018771. The next prime is 3928018777. The reversal of 3928018776 is 6778108293.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928018771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173335 + ... + 194681.

It is an arithmetic number, because the mean of its divisors is an integer number (90782370).

Almost surely, 2^3928018776 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 3928018776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5810071680).

3928018776 is an abundant number, since it is smaller than the sum of its proper divisors (7692124584).

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

3928018776 is a wasteful number, since it uses less digits than its factorization.

3928018776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21425 (or 21421 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 3928018776 is about 62673.9082553498. The cubic root of 3928018776 is about 1577.8214348137.

The spelling of 3928018776 in words is "three billion, nine hundred twenty-eight million, eighteen thousand, seven hundred seventy-six".