406106220032 has 20 divisors (see below), whose sum is σ = 811419264876. Its totient is φ = 203053109760.

The previous prime is 406106220019. The next prime is 406106220053. The reversal of 406106220032 is 230022601604.

It is a junction number, because it is equal to n+sod(n) for n = 406106219983 and 406106220010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396587594 + ... + 396588617.

Almost surely, 2^406106220032 is an apocalyptic number.

It is an amenable number.

406106220032 is a deficient number, since it is larger than the sum of its proper divisors (405313044844).

406106220032 is an frugal number, since it uses more digits than its factorization.

406106220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793176229 (or 793176213 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 406106220032 its reverse (230022601604), we get a palindrome (636128821636).

The spelling of 406106220032 in words is "four hundred six billion, one hundred six million, two hundred twenty thousand, thirty-two".