1331364738 has 16 divisors (see below), whose sum is σ = 2904795936. Its totient is φ = 403443840.

The previous prime is 1331364731. The next prime is 1331364743. The reversal of 1331364738 is 8374631331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1331364696 and 1331364705.

It is not an unprimeable number, because it can be changed into a prime (1331364731) 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, 10086031 + ... + 10086162.

It is an arithmetic number, because the mean of its divisors is an integer number (181549746).

Almost surely, 2^1331364738 is an apocalyptic number.

1331364738 is an abundant number, since it is smaller than the sum of its proper divisors (1573431198).

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

1331364738 is a wasteful number, since it uses less digits than its factorization.

1331364738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172209.

The product of its digits is 108864, while the sum is 39.

The square root of 1331364738 is about 36487.8711080819. The cubic root of 1331364738 is about 1100.1004696111.

The spelling of 1331364738 in words is "one billion, three hundred thirty-one million, three hundred sixty-four thousand, seven hundred thirty-eight".