212240342 has 8 divisors (see below), whose sum is σ = 337087656. Its totient is φ = 99877792.

The previous prime is 212240333. The next prime is 212240381. The reversal of 212240342 is 243042212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121148 + ... + 3121215.

It is an arithmetic number, because the mean of its divisors is an integer number (42135957).

Almost surely, 2^212240342 is an apocalyptic number.

212240342 is a deficient number, since it is larger than the sum of its proper divisors (124847314).

212240342 is a wasteful number, since it uses less digits than its factorization.

212240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242382.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 212240342 is about 14568.4708188608. The cubic root of 212240342 is about 596.4984400674.

Adding to 212240342 its reverse (243042212), we get a palindrome (455282554).

The spelling of 212240342 in words is "two hundred twelve million, two hundred forty thousand, three hundred forty-two".