212840375 has 32 divisors (see below), whose sum is σ = 305061120. Its totient is φ = 146628000.

The previous prime is 212840363. The next prime is 212840399. The reversal of 212840375 is 573048212.

It is not a de Polignac number, because 212840375 - 2⁶ = 212840311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22052 + ... + 30198.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^212840375 is an apocalyptic number.

212840375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212840375 is a deficient number, since it is larger than the sum of its proper divisors (92220745).

212840375 is a wasteful number, since it uses less digits than its factorization.

212840375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192 (or 8182 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 212840375 is about 14589.0498319801. The cubic root of 212840375 is about 597.0600392094.

Adding to 212840375 its reverse (573048212), we get a palindrome (785888587).

The spelling of 212840375 in words is "two hundred twelve million, eight hundred forty thousand, three hundred seventy-five".