32442144 has 96 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 8861952.

The previous prime is 32442143. The next prime is 32442161. The reversal of 32442144 is 44124423.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (32442143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14407 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^32442144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

32442144 is an abundant number, since it is smaller than the sum of its proper divisors (69164256).

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

32442144 is a wasteful number, since it uses less digits than its factorization.

32442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2134 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 32442144 is about 5695.8005583061. The cubic root of 32442144 is about 318.9357351962.

Adding to 32442144 its reverse (44124423), we get a palindrome (76566567).

The spelling of 32442144 in words is "thirty-two million, four hundred forty-two thousand, one hundred forty-four".