32223144 has 32 divisors (see below), whose sum is σ = 81061920. Its totient is φ = 10673856.

The previous prime is 32223101. The next prime is 32223199. The reversal of 32223144 is 44132223.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 32223144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207 + ... + 8030.

It is an arithmetic number, because the mean of its divisors is an integer number (2533185).

Almost surely, 2^32223144 is an apocalyptic number.

It is an amenable number.

32223144 is an abundant number, since it is smaller than the sum of its proper divisors (48838776).

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

32223144 is a wasteful number, since it uses less digits than its factorization.

32223144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409 (or 8405 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 32223144 is about 5676.5433143772. The cubic root of 32223144 is about 318.2164579826.

Adding to 32223144 its reverse (44132223), we get a palindrome (76355367).

The spelling of 32223144 in words is "thirty-two million, two hundred twenty-three thousand, one hundred forty-four".