4448090691 has 18 divisors (see below), whose sum is σ = 7010158428. Its totient is φ = 2695410360.

The previous prime is 4448090641. The next prime is 4448090693. The reversal of 4448090691 is 1960908444.

It is not a de Polignac number, because 4448090691 - 2²⁷ = 4313872963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4448090693) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 660246 + ... + 666948.

It is an arithmetic number, because the mean of its divisors is an integer number (389453246).

Almost surely, 2^4448090691 is an apocalyptic number.

4448090691 is a deficient number, since it is larger than the sum of its proper divisors (2562067737).

4448090691 is an frugal number, since it uses more digits than its factorization.

4448090691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13423 (or 6717 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 4448090691 is about 66694.0079092567. The cubic root of 4448090691 is about 1644.5908808499.

The spelling of 4448090691 in words is "four billion, four hundred forty-eight million, ninety thousand, six hundred ninety-one".