172065240 has 96 divisors (see below), whose sum is σ = 568760400. Its totient is φ = 45100800.

The previous prime is 172065199. The next prime is 172065241. The reversal of 172065240 is 42560271.

172065240 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 652 + 4 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172065241) 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, 17190 + ... + 25290.

Almost surely, 2^172065240 is an apocalyptic number.

172065240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172065240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284380200).

172065240 is an abundant number, since it is smaller than the sum of its proper divisors (396695160).

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

172065240 is a wasteful number, since it uses less digits than its factorization.

172065240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8177 (or 8170 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 172065240 is about 13117.3640644758. The cubic root of 172065240 is about 556.2000815365.

The spelling of 172065240 in words is "one hundred seventy-two million, sixty-five thousand, two hundred forty".