212410042 has 8 divisors (see below), whose sum is σ = 343123956. Its totient is φ = 98035392.

The previous prime is 212409979. The next prime is 212410049. The reversal of 212410042 is 240014212.

It can be written as a sum of positive squares in 2 ways, for example, as 171845881 + 40564161 = 13109^2 + 6369^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212409998 and 212410025.

It is not an unprimeable number, because it can be changed into a prime (212410049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4084783 + ... + 4084834.

Almost surely, 2^212410042 is an apocalyptic number.

212410042 is a deficient number, since it is larger than the sum of its proper divisors (130713914).

212410042 is a wasteful number, since it uses less digits than its factorization.

212410042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169632.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 212410042 is about 14574.2938765485. The cubic root of 212410042 is about 596.6573775208.

Adding to 212410042 its reverse (240014212), we get a palindrome (452424254).

The spelling of 212410042 in words is "two hundred twelve million, four hundred ten thousand, forty-two".