42396172 has 48 divisors (see below), whose sum is σ = 93217600. Its totient is φ = 16765056.

The previous prime is 42396169. The next prime is 42396187. The reversal of 42396172 is 27169324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16648 + ... + 19024.

Almost surely, 2^42396172 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 42396172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46608800).

42396172 is an abundant number, since it is smaller than the sum of its proper divisors (50821428).

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

42396172 is a wasteful number, since it uses less digits than its factorization.

42396172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2399 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 42396172 is about 6511.2342915917. The cubic root of 42396172 is about 348.6921859603.

The spelling of 42396172 in words is "forty-two million, three hundred ninety-six thousand, one hundred seventy-two".