2091493208 has 32 divisors (see below), whose sum is σ = 4566339360. Its totient is φ = 879440640.

The previous prime is 2091493193. The next prime is 2091493223. The reversal of 2091493208 is 8023941902.

It is an interprime number because it is at equal distance from previous prime (2091493193) and next prime (2091493223).

It is a super-3 number, since 3×2091493208³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 349373 + ... + 355308.

It is an arithmetic number, because the mean of its divisors is an integer number (142698105).

Almost surely, 2^2091493208 is an apocalyptic number.

2091493208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2091493208 is an abundant number, since it is smaller than the sum of its proper divisors (2474846152).

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

2091493208 is a wasteful number, since it uses less digits than its factorization.

2091493208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704747 (or 704743 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2091493208 is about 45732.8460518258. The cubic root of 2091493208 is about 1278.8476787533.

The spelling of 2091493208 in words is "two billion, ninety-one million, four hundred ninety-three thousand, two hundred eight".