43321312404 has 48 divisors (see below), whose sum is σ = 112444899840. Its totient is φ = 14423673600.

The previous prime is 43321312369. The next prime is 43321312417. The reversal of 43321312404 is 40421312334.

43321312404 is a `hidden beast` number, since 4 + 33 + 213 + 12 + 404 = 666.

It is a super-2 number, since 2×43321312404² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139197 + ... + 325604.

It is an arithmetic number, because the mean of its divisors is an integer number (2342602080).

Almost surely, 2^43321312404 is an apocalyptic number.

It is an amenable number.

43321312404 is an abundant number, since it is smaller than the sum of its proper divisors (69123587436).

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

43321312404 is a wasteful number, since it uses less digits than its factorization.

43321312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465677 (or 465669 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 43321312404 its reverse (40421312334), we get a palindrome (83742624738).

The spelling of 43321312404 in words is "forty-three billion, three hundred twenty-one million, three hundred twelve thousand, four hundred four".