1306727438 has 12 divisors (see below), whose sum is σ = 2025362520. Its totient is φ = 632286540.

The previous prime is 1306727399. The next prime is 1306727453. The reversal of 1306727438 is 8347276031.

It is a junction number, because it is equal to n+sod(n) for n = 1306727395 and 1306727404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338018 + ... + 341861.

It is an arithmetic number, because the mean of its divisors is an integer number (168780210).

Almost surely, 2^1306727438 is an apocalyptic number.

1306727438 is a deficient number, since it is larger than the sum of its proper divisors (718635082).

1306727438 is an equidigital number, since it uses as much as digits as its factorization.

1306727438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679943 (or 679912 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 1306727438 is about 36148.6851489788. The cubic root of 1306727438 is about 1093.2722802224.

The spelling of 1306727438 in words is "one billion, three hundred six million, seven hundred twenty-seven thousand, four hundred thirty-eight".