1328491222 has 8 divisors (see below), whose sum is σ = 1994563296. Its totient is φ = 663636792.

The previous prime is 1328491211. The next prime is 1328491223. The reversal of 1328491222 is 2221948231.

It is a happy number.

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 (1328491223) 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, 301678 + ... + 306049.

It is an arithmetic number, because the mean of its divisors is an integer number (249320412).

Almost surely, 2^1328491222 is an apocalyptic number.

1328491222 is a deficient number, since it is larger than the sum of its proper divisors (666072074).

1328491222 is a wasteful number, since it uses less digits than its factorization.

1328491222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608822.

The product of its digits is 13824, while the sum is 34.

The square root of 1328491222 is about 36448.4735208486. The cubic root of 1328491222 is about 1099.3084419000.

The spelling of 1328491222 in words is "one billion, three hundred twenty-eight million, four hundred ninety-one thousand, two hundred twenty-two".