826809132 has 12 divisors (see below), whose sum is σ = 1929221336. Its totient is φ = 275603040.

The previous prime is 826809097. The next prime is 826809133. The reversal of 826809132 is 231908628.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×826809132² = 1367226681517186848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (826809133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34450369 + ... + 34450392.

Almost surely, 2^826809132 is an apocalyptic number.

It is an amenable number.

826809132 is an abundant number, since it is smaller than the sum of its proper divisors (1102412204).

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

826809132 is a wasteful number, since it uses less digits than its factorization.

826809132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68900768 (or 68900766 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 826809132 is about 28754.2889322619. The cubic root of 826809132 is about 938.5737885915.

The spelling of 826809132 in words is "eight hundred twenty-six million, eight hundred nine thousand, one hundred thirty-two".