404444040134 has 4 divisors (see below), whose sum is σ = 606666060204. Its totient is φ = 202222020066.

The previous prime is 404444040131. The next prime is 404444040199. The reversal of 404444040134 is 431040444404.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404444040134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404444040131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111010032 + ... + 101111010035.

It is an arithmetic number, because the mean of its divisors is an integer number (151666515051).

Almost surely, 2^404444040134 is an apocalyptic number.

404444040134 is a deficient number, since it is larger than the sum of its proper divisors (202222020070).

404444040134 is a wasteful number, since it uses less digits than its factorization.

404444040134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202222020069.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 404444040134 its reverse (431040444404), we get a palindrome (835484484538).

The spelling of 404444040134 in words is "four hundred four billion, four hundred forty-four million, forty thousand, one hundred thirty-four".