23222278 has 8 divisors (see below), whose sum is σ = 34978680. Its totient is φ = 11562720.

The previous prime is 23222257. The next prime is 23222293. The reversal of 23222278 is 87222232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23608 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (4372335).

Almost surely, 2^23222278 is an apocalyptic number.

23222278 is a deficient number, since it is larger than the sum of its proper divisors (11756402).

23222278 is a wasteful number, since it uses less digits than its factorization.

23222278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48422.

The product of its digits is 5376, while the sum is 28.

The square root of 23222278 is about 4818.9498856079. The cubic root of 23222278 is about 285.2998915713.

The spelling of 23222278 in words is "twenty-three million, two hundred twenty-two thousand, two hundred seventy-eight".