212289036 has 24 divisors (see below), whose sum is σ = 505881600. Its totient is φ = 69257232.

The previous prime is 212288987. The next prime is 212289043. The reversal of 212289036 is 630982212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212288988 and 212289006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187636 + ... + 188763.

It is an arithmetic number, because the mean of its divisors is an integer number (21078400).

Almost surely, 2^212289036 is an apocalyptic number.

It is an amenable number.

212289036 is an abundant number, since it is smaller than the sum of its proper divisors (293592564).

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

212289036 is a wasteful number, since it uses less digits than its factorization.

212289036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376453 (or 376451 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 212289036 is about 14570.1419347925. The cubic root of 212289036 is about 596.5440545089.

The spelling of 212289036 in words is "two hundred twelve million, two hundred eighty-nine thousand, thirty-six".