421622261234 has 8 divisors (see below), whose sum is σ = 638695108908. Its totient is φ = 208723891600.

The previous prime is 421622261201. The next prime is 421622261293. The reversal of 421622261234 is 432162226124.

It can be written as a sum of positive squares in 2 ways, for example, as 269104675009 + 152517586225 = 518753^2 + 390535^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421622261194 and 421622261203.

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, 1043619257 + ... + 1043619660.

Almost surely, 2^421622261234 is an apocalyptic number.

421622261234 is a deficient number, since it is larger than the sum of its proper divisors (217072847674).

421622261234 is a wasteful number, since it uses less digits than its factorization.

421622261234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087239020.

The product of its digits is 55296, while the sum is 35.

Adding to 421622261234 its reverse (432162226124), we get a palindrome (853784487358).

The spelling of 421622261234 in words is "four hundred twenty-one billion, six hundred twenty-two million, two hundred sixty-one thousand, two hundred thirty-four".