4091449984 has 16 divisors (see below), whose sum is σ = 8150935770. Its totient is φ = 2045724928.

The previous prime is 4091449963. The next prime is 4091449997. The reversal of 4091449984 is 4899441904.

4091449984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3039096384 + 1052353600 = 55128^2 + 32440^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15982099 + ... + 15982354.

Almost surely, 2^4091449984 is an apocalyptic number.

It is an amenable number.

4091449984 is a deficient number, since it is larger than the sum of its proper divisors (4059485786).

4091449984 is an equidigital number, since it uses as much as digits as its factorization.

4091449984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31964467 (or 31964455 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 4091449984 is about 63964.4431227225. The cubic root of 4091449984 is about 1599.4073304914.

The spelling of 4091449984 in words is "four billion, ninety-one million, four hundred forty-nine thousand, nine hundred eighty-four".