823924940 has 24 divisors (see below), whose sum is σ = 1733214672. Its totient is φ = 329003840.

The previous prime is 823924921. The next prime is 823924979. The reversal of 823924940 is 49429328.

It is a super-3 number, since 3×823924940³ (a number of 28 digits) contains 333 as substring.

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, 23351 + ... + 46830.

It is an arithmetic number, because the mean of its divisors is an integer number (72217278).

Almost surely, 2^823924940 is an apocalyptic number.

It is an amenable number.

823924940 is an abundant number, since it is smaller than the sum of its proper divisors (909289732).

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

823924940 is a wasteful number, since it uses less digits than its factorization.

823924940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70777 (or 70775 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 823924940 is about 28704.0927395380. The cubic root of 823924940 is about 937.4811620511.

The spelling of 823924940 in words is "eight hundred twenty-three million, nine hundred twenty-four thousand, nine hundred forty".