222981398 has 8 divisors (see below), whose sum is σ = 336687600. Its totient is φ = 110752200.

The previous prime is 222981391. The next prime is 222981439. The reversal of 222981398 is 893189222.

222981398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222981391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368873 + ... + 369476.

It is an arithmetic number, because the mean of its divisors is an integer number (42085950).

Almost surely, 2^222981398 is an apocalyptic number.

222981398 is a deficient number, since it is larger than the sum of its proper divisors (113706202).

222981398 is a wasteful number, since it uses less digits than its factorization.

222981398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738502.

The product of its digits is 124416, while the sum is 44.

The square root of 222981398 is about 14932.5616690506. The cubic root of 222981398 is about 606.3958372643.

The spelling of 222981398 in words is "two hundred twenty-two million, nine hundred eighty-one thousand, three hundred ninety-eight".