172442196 has 60 divisors (see below), whose sum is σ = 453639648. Its totient is φ = 57118608.

The previous prime is 172442167. The next prime is 172442213. The reversal of 172442196 is 691244271.

It is a happy number.

It is a super-2 number, since 2×172442196² = 59472621922604832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 172442196.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 52515 + ... + 55701.

Almost surely, 2^172442196 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 172442196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226819824).

172442196 is an abundant number, since it is smaller than the sum of its proper divisors (281197452).

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

172442196 is a wasteful number, since it uses less digits than its factorization.

172442196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370 (or 3359 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 172442196 is about 13131.7247915116. The cubic root of 172442196 is about 556.6059547893.

The spelling of 172442196 in words is "one hundred seventy-two million, four hundred forty-two thousand, one hundred ninety-six".