211340402 has 32 divisors (see below), whose sum is σ = 395536512. Its totient is φ = 82456704.

The previous prime is 211340359. The next prime is 211340407. The reversal of 211340402 is 204043112.

It is not an unprimeable number, because it can be changed into a prime (211340407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5333 + ... + 21239.

It is an arithmetic number, because the mean of its divisors is an integer number (12360516).

Almost surely, 2^211340402 is an apocalyptic number.

211340402 is a deficient number, since it is larger than the sum of its proper divisors (184196110).

211340402 is a wasteful number, since it uses less digits than its factorization.

211340402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16002.

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

The square root of 211340402 is about 14537.5514444490. The cubic root of 211340402 is about 595.6541561400.

Adding to 211340402 its reverse (204043112), we get a palindrome (415383514).

The spelling of 211340402 in words is "two hundred eleven million, three hundred forty thousand, four hundred two".