1300887738 has 12 divisors (see below), whose sum is σ = 2818590138. Its totient is φ = 433629240.

The previous prime is 1300887733. The next prime is 1300887781. The reversal of 1300887738 is 8377880031.

It can be written as a sum of positive squares in only one way, i.e., 1215010449 + 85877289 = 34857^2 + 9267^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1300887693 and 1300887702.

It is not an unprimeable number, because it can be changed into a prime (1300887733) 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 in 5 ways as a sum of consecutive naturals, for example, 36135753 + ... + 36135788.

Almost surely, 2^1300887738 is an apocalyptic number.

1300887738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1300887738 is an abundant number, since it is smaller than the sum of its proper divisors (1517702400).

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

1300887738 is a wasteful number, since it uses less digits than its factorization.

1300887738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72271549 (or 72271546 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1300887738 is about 36067.8213647567. The cubic root of 1300887738 is about 1091.6412549789.

The spelling of 1300887738 in words is "one billion, three hundred million, eight hundred eighty-seven thousand, seven hundred thirty-eight".