826940 has 24 divisors (see below), whose sum is σ = 1753920. Its totient is φ = 327488.

The previous prime is 826939. The next prime is 826957. The reversal of 826940 is 49628.

826940 = 318² + 319² + ... + 325².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2⁸²⁶⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

826940 is an abundant number, since it is smaller than the sum of its proper divisors (926980).

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

826940 is a wasteful number, since it uses less digits than its factorization.

826940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 826940 is about 909.3624140023. The cubic root of 826940 is about 93.8623305378.

The spelling of 826940 in words is "eight hundred twenty-six thousand, nine hundred forty".