172490468 has 12 divisors (see below), whose sum is σ = 301964460. Its totient is φ = 86214912.

The previous prime is 172490447. The next prime is 172490473. The reversal of 172490468 is 864094271.

It can be written as a sum of positive squares in 2 ways, for example, as 63329764 + 109160704 = 7958^2 + 10448^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9488 + ... + 20856.

It is an arithmetic number, because the mean of its divisors is an integer number (25163705).

Almost surely, 2^172490468 is an apocalyptic number.

It is an amenable number.

172490468 is a deficient number, since it is larger than the sum of its proper divisors (129473992).

172490468 is a wasteful number, since it uses less digits than its factorization.

172490468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15166 (or 15164 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 172490468 is about 13133.5626545123. The cubic root of 172490468 is about 556.6578871209.

The spelling of 172490468 in words is "one hundred seventy-two million, four hundred ninety thousand, four hundred sixty-eight".