404473253894 has 4 divisors (see below), whose sum is σ = 606709880844. Its totient is φ = 202236626946.

The previous prime is 404473253893. The next prime is 404473253897. The reversal of 404473253894 is 498352374404.

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

It is a super-2 number, since 2×404473253894² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404473253893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101118313472 + ... + 101118313475.

It is an arithmetic number, because the mean of its divisors is an integer number (151677470211).

Almost surely, 2^404473253894 is an apocalyptic number.

404473253894 is a deficient number, since it is larger than the sum of its proper divisors (202236626950).

404473253894 is a wasteful number, since it uses less digits than its factorization.

404473253894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202236626949.

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 404473253894 in words is "four hundred four billion, four hundred seventy-three million, two hundred fifty-three thousand, eight hundred ninety-four".