172983240 has 48 divisors (see below), whose sum is σ = 562196700. Its totient is φ = 46128768.

The previous prime is 172983233. The next prime is 172983257. The reversal of 172983240 is 42389271.

It can be written as a sum of positive squares in 2 ways, for example, as 171557604 + 1425636 = 13098^2 + 1194^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 172983195 and 172983204.

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 11 ways as a sum of consecutive naturals, for example, 239895 + ... + 240614.

Almost surely, 2^172983240 is an apocalyptic number.

172983240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172983240 is an abundant number, since it is smaller than the sum of its proper divisors (389213460).

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

172983240 is a wasteful number, since it uses less digits than its factorization.

172983240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480526 (or 480519 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 172983240 is about 13152.3093029323. The cubic root of 172983240 is about 557.1874712090.

The spelling of 172983240 in words is "one hundred seventy-two million, nine hundred eighty-three thousand, two hundred forty".