32224043440 has 40 divisors (see below), whose sum is σ = 75205820448. Its totient is φ = 12840599040.

The previous prime is 32224043417. The next prime is 32224043443. The reversal of 32224043440 is 4434042223.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 32224043399 and 32224043408.

It is not an unprimeable number, because it can be changed into a prime (32224043443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744741 + ... + 786820.

Almost surely, 2^32224043440 is an apocalyptic number.

It is an amenable number.

32224043440 is an abundant number, since it is smaller than the sum of its proper divisors (42981777008).

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

32224043440 is a wasteful number, since it uses less digits than its factorization.

32224043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531837 (or 1531831 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 32224043440 its reverse (4434042223), we get a palindrome (36658085663).

The spelling of 32224043440 in words is "thirty-two billion, two hundred twenty-four million, forty-three thousand, four hundred forty".