1330049738 has 4 divisors (see below), whose sum is σ = 1995074610. Its totient is φ = 665024868.

The previous prime is 1330049737. The next prime is 1330049783. The reversal of 1330049738 is 8379400331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8379400331 = 29 ⋅288944839.

It can be written as a sum of positive squares in only one way, i.e., 1180403449 + 149646289 = 34357^2 + 12233^2 .

It is a super-5 number, since 5×1330049738⁵ (a number of 47 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (1330049737) 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, 332512433 + ... + 332512436.

Almost surely, 2^1330049738 is an apocalyptic number.

1330049738 is a deficient number, since it is larger than the sum of its proper divisors (665024872).

1330049738 is an equidigital number, since it uses as much as digits as its factorization.

1330049738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665024871.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1330049738 is about 36469.8469697914. The cubic root of 1330049738 is about 1099.7381575110.

The spelling of 1330049738 in words is "one billion, three hundred thirty million, forty-nine thousand, seven hundred thirty-eight".