2259223678 has 4 divisors (see below), whose sum is σ = 3388835520. Its totient is φ = 1129611838.

The previous prime is 2259223661. The next prime is 2259223679. The reversal of 2259223678 is 8763229522.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2259223679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564805918 + ... + 564805921.

It is an arithmetic number, because the mean of its divisors is an integer number (847208880).

Almost surely, 2^2259223678 is an apocalyptic number.

2259223678 is a deficient number, since it is larger than the sum of its proper divisors (1129611842).

2259223678 is a wasteful number, since it uses less digits than its factorization.

2259223678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129611841.

The product of its digits is 725760, while the sum is 46.

The square root of 2259223678 is about 47531.2915667142. The cubic root of 2259223678 is about 1312.1588391960.

The spelling of 2259223678 in words is "two billion, two hundred fifty-nine million, two hundred twenty-three thousand, six hundred seventy-eight".