223457890 has 8 divisors (see below), whose sum is σ = 402224220. Its totient is φ = 89383152.

The previous prime is 223457887. The next prime is 223457893. The reversal of 223457890 is 98754322.

It is an interprime number because it is at equal distance from previous prime (223457887) and next prime (223457893).

It can be written as a sum of positive squares in 2 ways, for example, as 204976489 + 18481401 = 14317^2 + 4299^2 .

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

It is not an unprimeable number, because it can be changed into a prime (223457893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11172885 + ... + 11172904.

Almost surely, 2^223457890 is an apocalyptic number.

223457890 is a deficient number, since it is larger than the sum of its proper divisors (178766330).

223457890 is a wasteful number, since it uses less digits than its factorization.

223457890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22345796.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 223457890 is about 14948.5079523008. The cubic root of 223457890 is about 606.8274684775.

The spelling of 223457890 in words is "two hundred twenty-three million, four hundred fifty-seven thousand, eight hundred ninety".