21422403410 has 8 divisors (see below), whose sum is σ = 38560326156. Its totient is φ = 8568961360.

The previous prime is 21422403337. The next prime is 21422403439. The reversal of 21422403410 is 1430422412.

It can be written as a sum of positive squares in 2 ways, for example, as 20886897529 + 535505881 = 144523^2 + 23141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071120161 + ... + 1071120180.

Almost surely, 2^21422403410 is an apocalyptic number.

21422403410 is a deficient number, since it is larger than the sum of its proper divisors (17137922746).

21422403410 is a wasteful number, since it uses less digits than its factorization.

21422403410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142240348.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21422403410 its reverse (1430422412), we get a palindrome (22852825822).

The spelling of 21422403410 in words is "twenty-one billion, four hundred twenty-two million, four hundred three thousand, four hundred ten".