32242140 has 72 divisors (see below), whose sum is σ = 111777120. Its totient is φ = 7369344.

The previous prime is 32242127. The next prime is 32242151. The reversal of 32242140 is 4124223.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11535 + ... + 14054.

It is an arithmetic number, because the mean of its divisors is an integer number (1552460).

Almost surely, 2^32242140 is an apocalyptic number.

32242140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32242140 is an abundant number, since it is smaller than the sum of its proper divisors (79534980).

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

32242140 is a wasteful number, since it uses less digits than its factorization.

32242140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25611 (or 25606 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 32242140 is about 5678.2162692169. The cubic root of 32242140 is about 318.2789767360.

Adding to 32242140 its reverse (4124223), we get a palindrome (36366363).

The spelling of 32242140 in words is "thirty-two million, two hundred forty-two thousand, one hundred forty".