823490424 has 48 divisors (see below), whose sum is σ = 2253298320. Its totient is φ = 271664640.

The previous prime is 823490363. The next prime is 823490441. The reversal of 823490424 is 424094328.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51972 + ... + 65939.

It is an arithmetic number, because the mean of its divisors is an integer number (46943715).

Almost surely, 2^823490424 is an apocalyptic number.

It is an amenable number.

823490424 is an abundant number, since it is smaller than the sum of its proper divisors (1429807896).

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

823490424 is a wasteful number, since it uses less digits than its factorization.

823490424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118020 (or 118013 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 823490424 is about 28696.5228555656. The cubic root of 823490424 is about 937.3163322329.

The spelling of 823490424 in words is "eight hundred twenty-three million, four hundred ninety thousand, four hundred twenty-four".