4491479268 has 96 divisors (see below), whose sum is σ = 12200222720. Its totient is φ = 1427168160.

The previous prime is 4491479263. The next prime is 4491479269. The reversal of 4491479268 is 8629741944.

4491479268 is a `hidden beast` number, since 4 + 491 + 4 + 7 + 92 + 68 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (4491479263) 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, 214305 + ... + 234327.

Almost surely, 2^4491479268 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 4491479268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6100111360).

4491479268 is an abundant number, since it is smaller than the sum of its proper divisors (7708743452).

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

4491479268 is a wasteful number, since it uses less digits than its factorization.

4491479268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20134 (or 20126 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 4491479268 is about 67018.4994460485. The cubic root of 4491479268 is about 1649.9209350544.

The spelling of 4491479268 in words is "four billion, four hundred ninety-one million, four hundred seventy-nine thousand, two hundred sixty-eight".