212023826 has 16 divisors (see below), whose sum is σ = 363657600. Its totient is φ = 90820320.

The previous prime is 212023807. The next prime is 212023829. The reversal of 212023826 is 628320212.

It is a junction number, because it is equal to n+sod(n) for n = 212023795 and 212023804.

It is not an unprimeable number, because it can be changed into a prime (212023829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46091 + ... + 50481.

It is an arithmetic number, because the mean of its divisors is an integer number (22728600).

Almost surely, 2^212023826 is an apocalyptic number.

212023826 is a deficient number, since it is larger than the sum of its proper divisors (151633774).

212023826 is a wasteful number, since it uses less digits than its factorization.

212023826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 212023826 is about 14561.0379437731. The cubic root of 212023826 is about 596.2955326816.

The spelling of 212023826 in words is "two hundred twelve million, twenty-three thousand, eight hundred twenty-six".