726340 has 24 divisors (see below), whose sum is σ = 1592640. Its totient is φ = 277728.

The previous prime is 726337. The next prime is 726367. The reversal of 726340 is 43627.

It is a plaindrome in base 11.

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, 330 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (66360).

2⁷²⁶³⁴⁰ is an apocalyptic number.

It is an amenable number.

726340 is an abundant number, since it is smaller than the sum of its proper divisors (866300).

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

726340 is a wasteful number, since it uses less digits than its factorization.

726340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 726340 is about 852.2558301355. The cubic root of 726340 is about 89.8904015690.

Adding to 726340 its reverse (43627), we get a palindrome (769967).

The spelling of 726340 in words is "seven hundred twenty-six thousand, three hundred forty".