1330881742 has 4 divisors (see below), whose sum is σ = 1996322616. Its totient is φ = 665440870.

The previous prime is 1330881731. The next prime is 1330881743. The reversal of 1330881742 is 2471880331.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1330881742² = 3542492422377909128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330881743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332720434 + ... + 332720437.

It is an arithmetic number, because the mean of its divisors is an integer number (499080654).

Almost surely, 2^1330881742 is an apocalyptic number.

1330881742 is a deficient number, since it is larger than the sum of its proper divisors (665440874).

1330881742 is an equidigital number, since it uses as much as digits as its factorization.

1330881742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665440873.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1330881742 is about 36481.2519247901. The cubic root of 1330881742 is about 1099.9674210737.

The spelling of 1330881742 in words is "one billion, three hundred thirty million, eight hundred eighty-one thousand, seven hundred forty-two".