172484240 has 20 divisors (see below), whose sum is σ = 401026044. Its totient is φ = 68993664.

The previous prime is 172484203. The next prime is 172484281. The reversal of 172484240 is 42484271.

It can be written as a sum of positive squares in 2 ways, for example, as 106419856 + 66064384 = 10316^2 + 8128^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 172484197 and 172484206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077947 + ... + 1078106.

Almost surely, 2^172484240 is an apocalyptic number.

172484240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172484240 is an abundant number, since it is smaller than the sum of its proper divisors (228541804).

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

172484240 is a wasteful number, since it uses less digits than its factorization.

172484240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156066 (or 2156060 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 172484240 is about 13133.3255499131. The cubic root of 172484240 is about 556.6511874134.

The spelling of 172484240 in words is "one hundred seventy-two million, four hundred eighty-four thousand, two hundred forty".