212300340 has 72 divisors (see below), whose sum is σ = 691502112. Its totient is φ = 48525120.

The previous prime is 212300321. The next prime is 212300359. The reversal of 212300340 is 43003212.

212300340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212300321) and next prime (212300359).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33166 + ... + 39045.

It is an arithmetic number, because the mean of its divisors is an integer number (9604196).

Almost surely, 2^212300340 is an apocalyptic number.

212300340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212300340 is an abundant number, since it is smaller than the sum of its proper divisors (479201772).

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

212300340 is a wasteful number, since it uses less digits than its factorization.

212300340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72237 (or 72228 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212300340 is about 14570.5298462341. The cubic root of 212300340 is about 596.5546426116.

Adding to 212300340 its reverse (43003212), we get a palindrome (255303552).

The spelling of 212300340 in words is "two hundred twelve million, three hundred thousand, three hundred forty".