32220404144 has 20 divisors (see below), whose sum is σ = 62675754120. Its totient is φ = 16046016000.

The previous prime is 32220404137. The next prime is 32220404149. The reversal of 32220404144 is 44140402223.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (32220404149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4007489 + ... + 4015520.

It is an arithmetic number, because the mean of its divisors is an integer number (3133787706).

Almost surely, 2^32220404144 is an apocalyptic number.

It is an amenable number.

32220404144 is a deficient number, since it is larger than the sum of its proper divisors (30455349976).

32220404144 is a wasteful number, since it uses less digits than its factorization.

32220404144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8023268 (or 8023262 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 32220404144 its reverse (44140402223), we get a palindrome (76360806367).

The spelling of 32220404144 in words is "thirty-two billion, two hundred twenty million, four hundred four thousand, one hundred forty-four".