212300440 has 32 divisors (see below), whose sum is σ = 521102160. Its totient is φ = 77200000.

The previous prime is 212300401. The next prime is 212300443. The reversal of 212300440 is 44003212.

212300440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212300443) 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, 240811 + ... + 241690.

Almost surely, 2^212300440 is an apocalyptic number.

212300440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212300440 is an abundant number, since it is smaller than the sum of its proper divisors (308801720).

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

212300440 is a wasteful number, since it uses less digits than its factorization.

212300440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482523 (or 482519 counting only the distinct ones).

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

The square root of 212300440 is about 14570.5332778179. The cubic root of 212300440 is about 596.5547362768.

Adding to 212300440 its reverse (44003212), we get a palindrome (256303652).

The spelling of 212300440 in words is "two hundred twelve million, three hundred thousand, four hundred forty".