212345676 has 36 divisors (see below), whose sum is σ = 537292392. Its totient is φ = 70712064.

The previous prime is 212345669. The next prime is 212345699. The reversal of 212345676 is 676543212.

212345676 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×212345676² = 90181372231793952, which contains 22 as substring.

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

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 212345676.

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, 44796 + ... + 49308.

Almost surely, 2^212345676 is an apocalyptic number.

It is an amenable number.

212345676 is an abundant number, since it is smaller than the sum of its proper divisors (324946716).

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

212345676 is a wasteful number, since it uses less digits than its factorization.

212345676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5825 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 212345676 is about 14572.0855061999. The cubic root of 212345676 is about 596.5971036464.

Adding to 212345676 its reverse (676543212), we get a palindrome (888888888).

The spelling of 212345676 in words is "two hundred twelve million, three hundred forty-five thousand, six hundred seventy-six".