212440563 has 24 divisors (see below), whose sum is σ = 319086768. Its totient is φ = 141243264.

The previous prime is 212440561. The next prime is 212440567. The reversal of 212440563 is 365044212.

212440563 is a `hidden beast` number, since 212 + 440 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 212440563 - 2¹ = 212440561 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (212440561) 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, 110095 + ... + 112007.

It is an arithmetic number, because the mean of its divisors is an integer number (13295282).

Almost surely, 2^212440563 is an apocalyptic number.

212440563 is a deficient number, since it is larger than the sum of its proper divisors (106646205).

212440563 is an equidigital number, since it uses as much as digits as its factorization.

212440563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 212440563 is about 14575.3409222563. The cubic root of 212440563 is about 596.6859538654.

Adding to 212440563 its reverse (365044212), we get a palindrome (577484775).

The spelling of 212440563 in words is "two hundred twelve million, four hundred forty thousand, five hundred sixty-three".