212710242 has 32 divisors (see below), whose sum is σ = 434911680. Its totient is φ = 69339200.

The previous prime is 212710231. The next prime is 212710261. The reversal of 212710242 is 242017212.

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, 48184 + ... + 52412.

It is an arithmetic number, because the mean of its divisors is an integer number (13590990).

Almost surely, 2^212710242 is an apocalyptic number.

212710242 is an abundant number, since it is smaller than the sum of its proper divisors (222201438).

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

212710242 is a wasteful number, since it uses less digits than its factorization.

212710242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 212710242 is about 14584.5891954487. The cubic root of 212710242 is about 596.9383313263.

Adding to 212710242 its reverse (242017212), we get a palindrome (454727454).

The spelling of 212710242 in words is "two hundred twelve million, seven hundred ten thousand, two hundred forty-two".