21403414210 has 16 divisors (see below), whose sum is σ = 38530748736. Its totient is φ = 8560342768.

The previous prime is 21403414169. The next prime is 21403414229. The reversal of 21403414210 is 1241430412.

It is a happy number.

It is a super-2 number, since 2×21403414210² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36904 + ... + 210163.

It is an arithmetic number, because the mean of its divisors is an integer number (2408171796).

Almost surely, 2^21403414210 is an apocalyptic number.

21403414210 is a deficient number, since it is larger than the sum of its proper divisors (17127334526).

21403414210 is a wasteful number, since it uses less digits than its factorization.

21403414210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255737.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21403414210 its reverse (1241430412), we get a palindrome (22644844622).

The spelling of 21403414210 in words is "twenty-one billion, four hundred three million, four hundred fourteen thousand, two hundred ten".