32400400404 has 12 divisors (see below), whose sum is σ = 75600934304. Its totient is φ = 10800133464.

The previous prime is 32400400399. The next prime is 32400400441. The reversal of 32400400404 is 40400400423.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×32400400404³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350016672 + ... + 1350016695.

Almost surely, 2^32400400404 is an apocalyptic number.

It is an amenable number.

32400400404 is an abundant number, since it is smaller than the sum of its proper divisors (43200533900).

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

32400400404 is a wasteful number, since it uses less digits than its factorization.

32400400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700033374 (or 2700033372 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 32400400404 its reverse (40400400423), we get a palindrome (72800800827).

The spelling of 32400400404 in words is "thirty-two billion, four hundred million, four hundred thousand, four hundred four".