1326726740 has 48 divisors (see below), whose sum is σ = 2847664512. Its totient is φ = 519033216.

The previous prime is 1326726719. The next prime is 1326726823. The reversal of 1326726740 is 476276231.

It is a junction number, because it is equal to n+sod(n) for n = 1326726694 and 1326726703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366017 + ... + 369623.

It is an arithmetic number, because the mean of its divisors is an integer number (59326344).

Almost surely, 2^1326726740 is an apocalyptic number.

1326726740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326726740 is an abundant number, since it is smaller than the sum of its proper divisors (1520937772).

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

1326726740 is a wasteful number, since it uses less digits than its factorization.

1326726740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016 (or 4014 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 1326726740 is about 36424.2603219338. The cubic root of 1326726740 is about 1098.8215313043.

The spelling of 1326726740 in words is "one billion, three hundred twenty-six million, seven hundred twenty-six thousand, seven hundred forty".