222746451 has 8 divisors (see below), whose sum is σ = 297315984. Its totient is φ = 148337280.

The previous prime is 222746413. The next prime is 222746453. The reversal of 222746451 is 154647222.

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

It is not a de Polignac number, because 222746451 - 2¹⁸ = 222484307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222746453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36810 + ... + 42431.

It is an arithmetic number, because the mean of its divisors is an integer number (37164498).

Almost surely, 2^222746451 is an apocalyptic number.

222746451 is a deficient number, since it is larger than the sum of its proper divisors (74569533).

222746451 is an equidigital number, since it uses as much as digits as its factorization.

222746451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80181.

The product of its digits is 26880, while the sum is 33.

The square root of 222746451 is about 14924.6926601522. The cubic root of 222746451 is about 606.1827836911.

The spelling of 222746451 in words is "two hundred twenty-two million, seven hundred forty-six thousand, four hundred fifty-one".