1329671442 has 32 divisors (see below), whose sum is σ = 2979514944. Its totient is φ = 392040000.

The previous prime is 1329671419. The next prime is 1329671449. The reversal of 1329671442 is 2441769231.

It is a super-2 number, since 2×1329671442² = 3536052287340718728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1329671442.

It is not an unprimeable number, because it can be changed into a prime (1329671449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269809 + ... + 274692.

It is an arithmetic number, because the mean of its divisors is an integer number (93109842).

Almost surely, 2^1329671442 is an apocalyptic number.

1329671442 is an abundant number, since it is smaller than the sum of its proper divisors (1649843502).

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

1329671442 is a wasteful number, since it uses less digits than its factorization.

1329671442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544554.

The product of its digits is 72576, while the sum is 39.

The square root of 1329671442 is about 36464.6601794121. The cubic root of 1329671442 is about 1099.6338842189.

The spelling of 1329671442 in words is "one billion, three hundred twenty-nine million, six hundred seventy-one thousand, four hundred forty-two".