31450432404 has 48 divisors (see below), whose sum is σ = 77385672000. Its totient is φ = 9913844736.

The previous prime is 31450432337. The next prime is 31450432451. The reversal of 31450432404 is 40423405413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3172 + ... + 250820.

It is an arithmetic number, because the mean of its divisors is an integer number (1612201500).

Almost surely, 2^31450432404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31450432404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38692836000).

31450432404 is an abundant number, since it is smaller than the sum of its proper divisors (45935239596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31450432404 is a wasteful number, since it uses less digits than its factorization.

31450432404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248232 (or 248230 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 31450432404 its reverse (40423405413), we get a palindrome (71873837817).

The spelling of 31450432404 in words is "thirty-one billion, four hundred fifty million, four hundred thirty-two thousand, four hundred four".