2287746493 has 4 divisors (see below), whose sum is σ = 2309957728. Its totient is φ = 2265535260.

The previous prime is 2287746481. The next prime is 2287746511. The reversal of 2287746493 is 3946477822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2287746493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2287746493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287746473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11105463 + ... + 11105668.

It is an arithmetic number, because the mean of its divisors is an integer number (577489432).

Almost surely, 2^2287746493 is an apocalyptic number.

It is an amenable number.

2287746493 is a deficient number, since it is larger than the sum of its proper divisors (22211235).

2287746493 is a wasteful number, since it uses less digits than its factorization.

2287746493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22211234.

The product of its digits is 4064256, while the sum is 52.

The square root of 2287746493 is about 47830.3929839595. The cubic root of 2287746493 is about 1317.6577864690.

The spelling of 2287746493 in words is "two billion, two hundred eighty-seven million, seven hundred forty-six thousand, four hundred ninety-three".