222257407 has 8 divisors (see below), whose sum is σ = 227431872. Its totient is φ = 217101600.

The previous prime is 222257381. The next prime is 222257419. The reversal of 222257407 is 704752222.

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

It is a cyclic number.

It is not a de Polignac number, because 222257407 - 2⁷ = 222257279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222257467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21057 + ... + 29797.

It is an arithmetic number, because the mean of its divisors is an integer number (28428984).

Almost surely, 2^222257407 is an apocalyptic number.

222257407 is a deficient number, since it is larger than the sum of its proper divisors (5174465).

222257407 is an equidigital number, since it uses as much as digits as its factorization.

222257407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 222257407 is about 14908.2999366125. The cubic root of 222257407 is about 605.7388300825.

The spelling of 222257407 in words is "two hundred twenty-two million, two hundred fifty-seven thousand, four hundred seven".