406262444129 has 4 divisors (see below), whose sum is σ = 406327483584. Its totient is φ = 406197404676.

The previous prime is 406262444117. The next prime is 406262444149. The reversal of 406262444129 is 921444262604.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406262444129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406262444129.

It is not an unprimeable number, because it can be changed into a prime (406262444149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32510357 + ... + 32522850.

It is an arithmetic number, because the mean of its divisors is an integer number (101581870896).

Almost surely, 2^406262444129 is an apocalyptic number.

It is an amenable number.

406262444129 is a deficient number, since it is larger than the sum of its proper divisors (65039455).

406262444129 is an equidigital number, since it uses as much as digits as its factorization.

406262444129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65039454.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 406262444129 in words is "four hundred six billion, two hundred sixty-two million, four hundred forty-four thousand, one hundred twenty-nine".