212240032 has 24 divisors (see below), whose sum is σ = 439840800. Its totient is φ = 100534464.

The previous prime is 212240003. The next prime is 212240069. The reversal of 212240032 is 230042212.

It is a super-2 number, since 2×212240032² = 90091662366722048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 212239988 and 212240015.

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 3 ways as a sum of consecutive naturals, for example, 173932 + ... + 175147.

It is an arithmetic number, because the mean of its divisors is an integer number (18326700).

Almost surely, 2^212240032 is an apocalyptic number.

It is an amenable number.

212240032 is an abundant number, since it is smaller than the sum of its proper divisors (227600768).

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

212240032 is a wasteful number, since it uses less digits than its factorization.

212240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349108 (or 349100 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212240032 is about 14568.4601794424. The cubic root of 212240032 is about 596.4981496504.

Adding to 212240032 its reverse (230042212), we get a palindrome (442282244).

The spelling of 212240032 in words is "two hundred twelve million, two hundred forty thousand, thirty-two".