826329940 has 24 divisors (see below), whose sum is σ = 1742946912. Its totient is φ = 329074080.

The previous prime is 826329919. The next prime is 826329971. The reversal of 826329940 is 49923628.

It is a congruent number.

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, 86466 + ... + 95545.

It is an arithmetic number, because the mean of its divisors is an integer number (72622788).

Almost surely, 2^826329940 is an apocalyptic number.

It is an amenable number.

826329940 is an abundant number, since it is smaller than the sum of its proper divisors (916616972).

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

826329940 is a wasteful number, since it uses less digits than its factorization.

826329940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182247 (or 182245 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 826329940 is about 28745.9551937312. The cubic root of 826329940 is about 938.3924311497.

The spelling of 826329940 in words is "eight hundred twenty-six million, three hundred twenty-nine thousand, nine hundred forty".