172449952 has 48 divisors (see below), whose sum is σ = 362577600. Its totient is φ = 80543232.

The previous prime is 172449941. The next prime is 172449967. The reversal of 172449952 is 259944271.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 172449899 and 172449908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28924 + ... + 34372.

It is an arithmetic number, because the mean of its divisors is an integer number (7553700).

Almost surely, 2^172449952 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 172449952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181288800).

172449952 is an abundant number, since it is smaller than the sum of its proper divisors (190127648).

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

172449952 is a wasteful number, since it uses less digits than its factorization.

172449952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525 (or 5517 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 172449952 is about 13132.0201035484. The cubic root of 172449952 is about 556.6142995587.

The spelling of 172449952 in words is "one hundred seventy-two million, four hundred forty-nine thousand, nine hundred fifty-two".