172860480 has 448 divisors, whose sum is σ = 699820800. Its totient is φ = 40310784.

The previous prime is 172860463. The next prime is 172860481. The reversal of 172860480 is 84068271.

172860480 is a `hidden beast` number, since 172 + 8 + 6 + 0 + 480 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172860481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9097911 + ... + 9097929.

It is an arithmetic number, because the mean of its divisors is an integer number (1562100).

Almost surely, 2^172860480 is an apocalyptic number.

172860480 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 172860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349910400).

172860480 is an abundant number, since it is smaller than the sum of its proper divisors (526960320).

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

172860480 is an equidigital number, since it uses as much as digits as its factorization.

172860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 172860480 is about 13147.6416136127. The cubic root of 172860480 is about 557.0556346974.

The spelling of 172860480 in words is "one hundred seventy-two million, eight hundred sixty thousand, four hundred eighty".