826923440 has 40 divisors (see below), whose sum is σ = 2197255200. Its totient is φ = 283516416.

The previous prime is 826923403. The next prime is 826923443. The reversal of 826923440 is 44329628.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 826923394 and 826923403.

It is not an unprimeable number, because it can be changed into a prime (826923443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737765 + ... + 738884.

It is an arithmetic number, because the mean of its divisors is an integer number (54931380).

Almost surely, 2^826923440 is an apocalyptic number.

826923440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

826923440 is an abundant number, since it is smaller than the sum of its proper divisors (1370331760).

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

826923440 is a wasteful number, since it uses less digits than its factorization.

826923440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476669 (or 1476663 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 826923440 is about 28756.2765322634. The cubic root of 826923440 is about 938.6170398267.

The spelling of 826923440 in words is "eight hundred twenty-six million, nine hundred twenty-three thousand, four hundred forty".