222826491 has 16 divisors (see below), whose sum is σ = 330343200. Its totient is φ = 148447584.

The previous prime is 222826447. The next prime is 222826493. The reversal of 222826491 is 194628222.

222826491 is a `hidden beast` number, since 2 + 2 + 2 + 8 + 2 + 649 + 1 = 666.

It is not a de Polignac number, because 222826491 - 2¹⁷ = 222695419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222826493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75145 + ... + 78053.

It is an arithmetic number, because the mean of its divisors is an integer number (20646450).

Almost surely, 2^222826491 is an apocalyptic number.

222826491 is a deficient number, since it is larger than the sum of its proper divisors (107516709).

222826491 is a wasteful number, since it uses less digits than its factorization.

222826491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755 (or 5749 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 222826491 is about 14927.3738815640. The cubic root of 222826491 is about 606.2553820190.

The spelling of 222826491 in words is "two hundred twenty-two million, eight hundred twenty-six thousand, four hundred ninety-one".