2091231744 has 240 divisors, whose sum is σ = 6773667648. Its totient is φ = 561512448.

The previous prime is 2091231743. The next prime is 2091231797. The reversal of 2091231744 is 4471321902.

It is a super-2 number, since 2×2091231744² = 8746500414226563072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2091231743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3106992 + ... + 3107664.

Almost surely, 2^2091231744 is an apocalyptic number.

2091231744 is a gapful number since it is divisible by the number (24) 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 2091231744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386833824).

2091231744 is an abundant number, since it is smaller than the sum of its proper divisors (4682435904).

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

2091231744 is an equidigital number, since it uses as much as digits as its factorization.

2091231744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2091231744 is about 45729.9873605930. The cubic root of 2091231744 is about 1278.7943856383.

The spelling of 2091231744 in words is "two billion, ninety-one million, two hundred thirty-one thousand, seven hundred forty-four".