823400016 has 40 divisors (see below), whose sum is σ = 2200469280. Its totient is φ = 265001856.

The previous prime is 823399949. The next prime is 823400057. The reversal of 823400016 is 610004328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 294370 + ... + 297153.

It is an arithmetic number, because the mean of its divisors is an integer number (55011732).

Almost surely, 2^823400016 is an apocalyptic number.

It is an amenable number.

823400016 is an abundant number, since it is smaller than the sum of its proper divisors (1377069264).

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

823400016 is a wasteful number, since it uses less digits than its factorization.

823400016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591563 (or 591557 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 823400016 is about 28694.9475692150. The cubic root of 823400016 is about 937.2820294676.

The spelling of 823400016 in words is "eight hundred twenty-three million, four hundred thousand, sixteen".