212340310 has 32 divisors (see below), whose sum is σ = 470417472. Its totient is φ = 67201920.

The previous prime is 212340281. The next prime is 212340343. The reversal of 212340310 is 13043212.

It is a happy number.

It is a super-2 number, since 2×212340310² = 90176814501792200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115761 + ... + 117580.

It is an arithmetic number, because the mean of its divisors is an integer number (14700546).

Almost surely, 2^212340310 is an apocalyptic number.

212340310 is an abundant number, since it is smaller than the sum of its proper divisors (258077162).

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

212340310 is a wasteful number, since it uses less digits than its factorization.

212340310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233368.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212340310 is about 14571.9013858865. The cubic root of 212340310 is about 596.5920782446.

Adding to 212340310 its reverse (13043212), we get a palindrome (225383522).

The spelling of 212340310 in words is "two hundred twelve million, three hundred forty thousand, three hundred ten".