4491926928 has 120 divisors (see below), whose sum is σ = 13486636800. Its totient is φ = 1445641344.

The previous prime is 4491926917. The next prime is 4491926953. The reversal of 4491926928 is 8296291944.

4491926928 is a `hidden beast` number, since 4 + 491 + 92 + 69 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92833 + ... + 132671.

It is an arithmetic number, because the mean of its divisors is an integer number (112388640).

Almost surely, 2^4491926928 is an apocalyptic number.

4491926928 is a gapful number since it is divisible by the number (48) 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 4491926928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6743318400).

4491926928 is an abundant number, since it is smaller than the sum of its proper divisors (8994709872).

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

4491926928 is a wasteful number, since it uses less digits than its factorization.

4491926928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39891 (or 39873 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 4491926928 is about 67021.8391869397. The cubic root of 4491926928 is about 1649.9757484039.

The spelling of 4491926928 in words is "four billion, four hundred ninety-one million, nine hundred twenty-six thousand, nine hundred twenty-eight".