2102805346 has 8 divisors (see below), whose sum is σ = 3155081040. Its totient is φ = 1051111668.

The previous prime is 2102805317. The next prime is 2102805347. The reversal of 2102805346 is 6435082012.

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 (2102805347) 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, 136356 + ... + 150991.

It is an arithmetic number, because the mean of its divisors is an integer number (394385130).

Almost surely, 2^2102805346 is an apocalyptic number.

2102805346 is a deficient number, since it is larger than the sum of its proper divisors (1052275694).

2102805346 is a wasteful number, since it uses less digits than its factorization.

2102805346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291008.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2102805346 is about 45856.3555682307. The cubic root of 2102805346 is about 1281.1491442135.

Adding to 2102805346 its reverse (6435082012), we get a palindrome (8537887358).

The spelling of 2102805346 in words is "two billion, one hundred two million, eight hundred five thousand, three hundred forty-six".