1381304738 has 16 divisors (see below), whose sum is σ = 2312883936. Its totient is φ = 613263840.

The previous prime is 1381304737. The next prime is 1381304773. The reversal of 1381304738 is 8374031831.

It is not an unprimeable number, because it can be changed into a prime (1381304737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729131 + ... + 731022.

It is an arithmetic number, because the mean of its divisors is an integer number (144555246).

Almost surely, 2^1381304738 is an apocalyptic number.

1381304738 is a deficient number, since it is larger than the sum of its proper divisors (931579198).

1381304738 is a wasteful number, since it uses less digits than its factorization.

1381304738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460209.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1381304738 is about 37165.9082762685. The cubic root of 1381304738 is about 1113.6870435009.

The spelling of 1381304738 in words is "one billion, three hundred eighty-one million, three hundred four thousand, seven hundred thirty-eight".