211413730 has 32 divisors (see below), whose sum is σ = 416404800. Its totient is φ = 76643520.

The previous prime is 211413691. The next prime is 211413733. The reversal of 211413730 is 37314112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (211413733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35637 + ... + 41143.

It is an arithmetic number, because the mean of its divisors is an integer number (13012650).

Almost surely, 2^211413730 is an apocalyptic number.

211413730 is a deficient number, since it is larger than the sum of its proper divisors (204991070).

211413730 is a wasteful number, since it uses less digits than its factorization.

211413730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 211413730 is about 14540.0732460328. The cubic root of 211413730 is about 595.7230388160.

Adding to 211413730 its reverse (37314112), we get a palindrome (248727842).

The spelling of 211413730 in words is "two hundred eleven million, four hundred thirteen thousand, seven hundred thirty".