405434041142254 has 64 divisors (see below), whose sum is σ = 649496456586432. Its totient is φ = 189148306636800.

The previous prime is 405434041142243. The next prime is 405434041142311. The reversal of 405434041142254 is 452241140434504.

It is a self number, because there is not a number n which added to its sum of digits gives 405434041142254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28891466022 + ... + 28891480054.

It is an arithmetic number, because the mean of its divisors is an integer number (10148382134163).

Almost surely, 2^{405434041142254} is an apocalyptic number.

405434041142254 is a deficient number, since it is larger than the sum of its proper divisors (244062415444178).

405434041142254 is a wasteful number, since it uses less digits than its factorization.

405434041142254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28501.

The product of its (nonzero) digits is 1228800, while the sum is 43.

Adding to 405434041142254 its reverse (452241140434504), we get a palindrome (857675181576758).

The spelling of 405434041142254 in words is "four hundred five trillion, four hundred thirty-four billion, forty-one million, one hundred forty-two thousand, two hundred fifty-four".