212340104 has 8 divisors (see below), whose sum is σ = 398137710. Its totient is φ = 106170048.

The previous prime is 212340103. The next prime is 212340119. The reversal of 212340104 is 401043212.

It can be written as a sum of positive squares in only one way, i.e., 160528900 + 51811204 = 12670^2 + 7198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (212340103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13271249 + ... + 13271264.

Almost surely, 2^212340104 is an apocalyptic number.

It is an amenable number.

212340104 is a deficient number, since it is larger than the sum of its proper divisors (185797606).

212340104 is a wasteful number, since it uses less digits than its factorization.

212340104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26542519 (or 26542515 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212340104 is about 14571.8943174867. The cubic root of 212340104 is about 596.5918853184.

Adding to 212340104 its reverse (401043212), we get a palindrome (613383316).

The spelling of 212340104 in words is "two hundred twelve million, three hundred forty thousand, one hundred four".