1318726004 has 6 divisors (see below), whose sum is σ = 2307770514. Its totient is φ = 659363000.

The previous prime is 1318726001. The next prime is 1318726033. The reversal of 1318726004 is 4006278131.

It can be written as a sum of positive squares in only one way, i.e., 1207423504 + 111302500 = 34748^2 + 10550^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318726001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164840747 + ... + 164840754.

It is an arithmetic number, because the mean of its divisors is an integer number (384628419).

Almost surely, 2^1318726004 is an apocalyptic number.

It is an amenable number.

1318726004 is a deficient number, since it is larger than the sum of its proper divisors (989044510).

1318726004 is a wasteful number, since it uses less digits than its factorization.

1318726004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329681505 (or 329681503 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1318726004 is about 36314.2672237786. The cubic root of 1318726004 is about 1096.6082867064.

The spelling of 1318726004 in words is "one billion, three hundred eighteen million, seven hundred twenty-six thousand, four".