2289993451 has 4 divisors (see below), whose sum is σ = 2290210000. Its totient is φ = 2289776904.

The previous prime is 2289993427. The next prime is 2289993457. The reversal of 2289993451 is 1543999822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2289993451 - 2³¹ = 142509803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289993457) 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, 91551 + ... + 113848.

It is an arithmetic number, because the mean of its divisors is an integer number (572552500).

Almost surely, 2^2289993451 is an apocalyptic number.

2289993451 is a deficient number, since it is larger than the sum of its proper divisors (216549).

2289993451 is a wasteful number, since it uses less digits than its factorization.

2289993451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216548.

The product of its digits is 1399680, while the sum is 52.

The square root of 2289993451 is about 47853.8760290115. The cubic root of 2289993451 is about 1318.0890336856.

The spelling of 2289993451 in words is "two billion, two hundred eighty-nine million, nine hundred ninety-three thousand, four hundred fifty-one".