904434223431 has 32 divisors (see below), whose sum is σ = 1287360345600. Its totient is φ = 562831302656.

The previous prime is 904434223393. The next prime is 904434223439. The reversal of 904434223431 is 134322434409.

It is a cyclic number.

It is not a de Polignac number, because 904434223431 - 2³³ = 895844288839 is a prime.

It is a super-2 number, since 2×904434223431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 904434223431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904434223439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3705880 + ... + 3942386.

It is an arithmetic number, because the mean of its divisors is an integer number (40230010800).

Almost surely, 2^904434223431 is an apocalyptic number.

904434223431 is a deficient number, since it is larger than the sum of its proper divisors (382926122169).

904434223431 is a wasteful number, since it uses less digits than its factorization.

904434223431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237143.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 904434223431 in words is "nine hundred four billion, four hundred thirty-four million, two hundred twenty-three thousand, four hundred thirty-one".