1329426 has 32 divisors (see below), whose sum is σ = 3377280. Its totient is φ = 379728.

The previous prime is 1329407. The next prime is 1329437. The reversal of 1329426 is 6249231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1329426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381 + ... + 2136.

It is an arithmetic number, because the mean of its divisors is an integer number (105540).

2^1329426 is an apocalyptic number.

1329426 is an abundant number, since it is smaller than the sum of its proper divisors (2047854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1329426 is a wasteful number, since it uses less digits than its factorization.

1329426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535 (or 3529 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1329426 is about 1153.0073720493. The cubic root of 1329426 is about 109.9566220148.

The spelling of 1329426 in words is "one million, three hundred twenty-nine thousand, four hundred twenty-six".