1726326340 has 24 divisors (see below), whose sum is σ = 3661183512. Its totient is φ = 683692800.

The previous prime is 1726326331. The next prime is 1726326359. The reversal of 1726326340 is 436236271.

It can be written as a sum of positive squares in 4 ways, for example, as 1184461056 + 541865284 = 34416^2 + 23278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1726326296 and 1726326305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425289 + ... + 429328.

It is an arithmetic number, because the mean of its divisors is an integer number (152549313).

Almost surely, 2^1726326340 is an apocalyptic number.

1726326340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1726326340 is an abundant number, since it is smaller than the sum of its proper divisors (1934857172).

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

1726326340 is a wasteful number, since it uses less digits than its factorization.

1726326340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854727 (or 854725 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 1726326340 is about 41549.0835037309. The cubic root of 1726326340 is about 1199.6124535570.

The spelling of 1726326340 in words is "one billion, seven hundred twenty-six million, three hundred twenty-six thousand, three hundred forty".