31404421434204 has 144 divisors (see below), whose sum is σ = 97727178144960. Its totient is φ = 8280404997120.

The previous prime is 31404421434163. The next prime is 31404421434223. The reversal of 31404421434204 is 40243412440413.

31404421434204 is a `hidden beast` number, since 3 + 1 + 4 + 0 + 442 + 1 + 4 + 3 + 4 + 204 = 666.

It is a super-2 number, since 2×31404421434204² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11866384 + ... + 14269544.

It is an arithmetic number, because the mean of its divisors is an integer number (678660959340).

Almost surely, 2^{31404421434204} 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 31404421434204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48863589072480).

31404421434204 is an abundant number, since it is smaller than the sum of its proper divisors (66322756710756).

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

31404421434204 is a wasteful number, since it uses less digits than its factorization.

31404421434204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407180 (or 2407175 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 31404421434204 its reverse (40243412440413), we get a palindrome (71647833874617).

The spelling of 31404421434204 in words is "thirty-one trillion, four hundred four billion, four hundred twenty-one million, four hundred thirty-four thousand, two hundred four".