2121610346 has 8 divisors (see below), whose sum is σ = 3196313220. Its totient is φ = 1056172608.

The previous prime is 2121610339. The next prime is 2121610349. The reversal of 2121610346 is 6430161212.

It can be written as a sum of positive squares in 2 ways, for example, as 1763076121 + 358534225 = 41989^2 + 18935^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2121610349) 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, 2315711 + ... + 2316626.

Almost surely, 2^2121610346 is an apocalyptic number.

2121610346 is a deficient number, since it is larger than the sum of its proper divisors (1074702874).

2121610346 is a wasteful number, since it uses less digits than its factorization.

2121610346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632568.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2121610346 is about 46060.9416534226. The cubic root of 2121610346 is about 1284.9568429136.

Adding to 2121610346 its reverse (6430161212), we get a palindrome (8551771558).

The spelling of 2121610346 in words is "two billion, one hundred twenty-one million, six hundred ten thousand, three hundred forty-six".