1329998 has 16 divisors (see below), whose sum is σ = 2155680. Its totient is φ = 613536.

The previous prime is 1329971. The next prime is 1330001. The reversal of 1329998 is 8999231.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 1832.

It is an arithmetic number, because the mean of its divisors is an integer number (134730).

2^1329998 is an apocalyptic number.

1329998 is a deficient number, since it is larger than the sum of its proper divisors (825682).

1329998 is a wasteful number, since it uses less digits than its factorization.

1329998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its digits is 34992, while the sum is 41.

The square root of 1329998 is about 1153.2553923568. The cubic root of 1329998 is about 109.9723897646.

The spelling of 1329998 in words is "one million, three hundred twenty-nine thousand, nine hundred ninety-eight".