405442315223 has 16 divisors (see below), whose sum is σ = 442985366016. Its totient is φ = 368013841440.

The previous prime is 405442315147. The next prime is 405442315259. The reversal of 405442315223 is 322513244504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 405442315223 - 2⁸ = 405442314967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405442315423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19582865 + ... + 19603557.

It is an arithmetic number, because the mean of its divisors is an integer number (27686585376).

Almost surely, 2^405442315223 is an apocalyptic number.

405442315223 is a deficient number, since it is larger than the sum of its proper divisors (37543050793).

405442315223 is a wasteful number, since it uses less digits than its factorization.

405442315223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23374.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 405442315223 its reverse (322513244504), we get a palindrome (727955559727).

The spelling of 405442315223 in words is "four hundred five billion, four hundred forty-two million, three hundred fifteen thousand, two hundred twenty-three".