1380318337 has 4 divisors (see below), whose sum is σ = 1417624276. Its totient is φ = 1343012400.

The previous prime is 1380318319. The next prime is 1380318353. The reversal of 1380318337 is 7338130831.

It is the 15168-th star number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1252876816 + 127441521 = 35396^2 + 11289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380318337 is a prime.

It is a super-2 number, since 2×1380318337² = 3810557422916891138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 37305901 = 1380318337 / (1 + 3 + 8 + 0 + 3 + 1 + 8 + 3 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380318296 and 1380318305.

It is not an unprimeable number, because it can be changed into a prime (1380318377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18652914 + ... + 18652987.

It is an arithmetic number, because the mean of its divisors is an integer number (354406069).

Almost surely, 2^1380318337 is an apocalyptic number.

It is an amenable number.

1380318337 is a deficient number, since it is larger than the sum of its proper divisors (37305939).

1380318337 is an equidigital number, since it uses as much as digits as its factorization.

1380318337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37305938.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1380318337 is about 37152.6356669349. The cubic root of 1380318337 is about 1113.4218827005.

The spelling of 1380318337 in words is "one billion, three hundred eighty million, three hundred eighteen thousand, three hundred thirty-seven".