1222403398 has 16 divisors (see below), whose sum is σ = 1880485200. Its totient is φ = 595639296.

The previous prime is 1222403393. The next prime is 1222403407. The reversal of 1222403398 is 8933042221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222403393) 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, 22786 + ... + 54442.

It is an arithmetic number, because the mean of its divisors is an integer number (117530325).

Almost surely, 2^1222403398 is an apocalyptic number.

1222403398 is a deficient number, since it is larger than the sum of its proper divisors (658081802).

1222403398 is a wasteful number, since it uses less digits than its factorization.

1222403398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32151.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1222403398 is about 34962.8860078798. The cubic root of 1222403398 is about 1069.2309371636.

The spelling of 1222403398 in words is "one billion, two hundred twenty-two million, four hundred three thousand, three hundred ninety-eight".