423392256 has 132 divisors (see below), whose sum is σ = 1397396832. Its totient is φ = 120950784.

The previous prime is 423392239. The next prime is 423392267. The reversal of 423392256 is 652293324.

It is a happy number.

423392256 is a `hidden beast` number, since 423 + 3 + 9 + 225 + 6 = 666.

It is a super-2 number, since 2×423392256² = 358522004881539072, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423392256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61231 + ... + 67793.

Almost surely, 2^423392256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423392256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698698416).

423392256 is an abundant number, since it is smaller than the sum of its proper divisors (974004576).

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

423392256 is a wasteful number, since it uses less digits than its factorization.

423392256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596 (or 6575 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 423392256 is about 20576.4976611667. The cubic root of 423392256 is about 750.8980389389.

The spelling of 423392256 in words is "four hundred twenty-three million, three hundred ninety-two thousand, two hundred fifty-six".