402563223 has 24 divisors (see below), whose sum is σ = 604287600. Its totient is φ = 264867408.

The previous prime is 402563209. The next prime is 402563299. The reversal of 402563223 is 322365204.

402563223 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 632 + 23 = 666.

It is not a de Polignac number, because 402563223 - 2⁶ = 402563159 is a prime.

It is a super-3 number, since 3×402563223³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402563323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167313 + ... + 169701.

It is an arithmetic number, because the mean of its divisors is an integer number (25178650).

Almost surely, 2^402563223 is an apocalyptic number.

402563223 is a deficient number, since it is larger than the sum of its proper divisors (201724377).

402563223 is an equidigital number, since it uses as much as digits as its factorization.

402563223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 402563223 is about 20063.9782446054. The cubic root of 402563223 is about 738.3767822873.

The spelling of 402563223 in words is "four hundred two million, five hundred sixty-three thousand, two hundred twenty-three".