406274645405 has 8 divisors (see below), whose sum is σ = 487577325312. Its totient is φ = 324987882448.

The previous prime is 406274645389. The next prime is 406274645407. The reversal of 406274645405 is 504546472604.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 406274645405 - 2⁴ = 406274645389 is a prime.

It is a super-2 number, since 2×406274645405² (a number of 24 digits) contains 22 as substring.

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 406274645405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406274645407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3923009 + ... + 4025238.

It is an arithmetic number, because the mean of its divisors is an integer number (60947165664).

Almost surely, 2^406274645405 is an apocalyptic number.

It is an amenable number.

406274645405 is a deficient number, since it is larger than the sum of its proper divisors (81302679907).

406274645405 is a wasteful number, since it uses less digits than its factorization.

406274645405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7958475.

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 406274645405 in words is "four hundred six billion, two hundred seventy-four million, six hundred forty-five thousand, four hundred five".