2291406875 has 10 divisors (see below), whose sum is σ = 2863342812. Its totient is φ = 1833125000.

The previous prime is 2291406851. The next prime is 2291406889. The reversal of 2291406875 is 5786041922.

It is a happy number.

It is not a de Polignac number, because 2291406875 - 2⁸ = 2291406619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1832501 + ... + 1833750.

Almost surely, 2^2291406875 is an apocalyptic number.

2291406875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2291406875 is a deficient number, since it is larger than the sum of its proper divisors (571935937).

2291406875 is an frugal number, since it uses more digits than its factorization.

2291406875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666271 (or 3666256 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2291406875 is about 47868.6418754491. The cubic root of 2291406875 is about 1318.3601604449.

The spelling of 2291406875 in words is "two billion, two hundred ninety-one million, four hundred six thousand, eight hundred seventy-five".