340421210 has 16 divisors (see below), whose sum is σ = 615969792. Its totient is φ = 135454800.

The previous prime is 340421149. The next prime is 340421219. The reversal of 340421210 is 12124043.

It is not an unprimeable number, because it can be changed into a prime (340421219) 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 7 ways as a sum of consecutive naturals, for example, 87206 + ... + 91025.

It is an arithmetic number, because the mean of its divisors is an integer number (38498112).

Almost surely, 2^340421210 is an apocalyptic number.

340421210 is a deficient number, since it is larger than the sum of its proper divisors (275548582).

340421210 is a wasteful number, since it uses less digits than its factorization.

340421210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178429.

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

The square root of 340421210 is about 18450.5070391033. The cubic root of 340421210 is about 698.2413062120.

Adding to 340421210 its reverse (12124043), we get a palindrome (352545253).

The spelling of 340421210 in words is "three hundred forty million, four hundred twenty-one thousand, two hundred ten".