42172332 has 12 divisors (see below), whose sum is σ = 98402136. Its totient is φ = 14057440.

The previous prime is 42172331. The next prime is 42172373. The reversal of 42172332 is 23327124.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42172331) 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, 1757169 + ... + 1757192.

It is an arithmetic number, because the mean of its divisors is an integer number (8200178).

Almost surely, 2^42172332 is an apocalyptic number.

It is an amenable number.

42172332 is an abundant number, since it is smaller than the sum of its proper divisors (56229804).

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

42172332 is a wasteful number, since it uses less digits than its factorization.

42172332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514368 (or 3514366 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 42172332 is about 6494.0227902279. The cubic root of 42172332 is about 348.0774368565.

Adding to 42172332 its reverse (23327124), we get a palindrome (65499456).

The spelling of 42172332 in words is "forty-two million, one hundred seventy-two thousand, three hundred thirty-two".