172741020 has 96 divisors (see below), whose sum is σ = 497259840. Its totient is φ = 44789760.

The previous prime is 172741013. The next prime is 172741033. The reversal of 172741020 is 20147271.

172741020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398724 + ... + 399156.

It is an arithmetic number, because the mean of its divisors is an integer number (5179790).

Almost surely, 2^172741020 is an apocalyptic number.

172741020 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 172741020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248629920).

172741020 is an abundant number, since it is smaller than the sum of its proper divisors (324518820).

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

172741020 is a wasteful number, since it uses less digits than its factorization.

172741020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 172741020 is about 13143.0978083555. The cubic root of 172741020 is about 556.9272822414.

Adding to 172741020 its reverse (20147271), we get a palindrome (192888291).

The spelling of 172741020 in words is "one hundred seventy-two million, seven hundred forty-one thousand, twenty".