32140242 has 48 divisors (see below), whose sum is σ = 72483840. Its totient is φ = 10281600.

The previous prime is 32140237. The next prime is 32140243. The reversal of 32140242 is 24204123.

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

It is not an unprimeable number, because it can be changed into a prime (32140243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133242 + ... + 133482.

It is an arithmetic number, because the mean of its divisors is an integer number (1510080).

Almost surely, 2^32140242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32140242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36241920).

32140242 is an abundant number, since it is smaller than the sum of its proper divisors (40343598).

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

32140242 is a wasteful number, since it uses less digits than its factorization.

32140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 516 counting only the distinct ones).

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

The square root of 32140242 is about 5669.2364565257. The cubic root of 32140242 is about 317.9433267938.

Adding to 32140242 its reverse (24204123), we get a palindrome (56344365).

The spelling of 32140242 in words is "thirty-two million, one hundred forty thousand, two hundred forty-two".