450172 has 6 divisors (see below), whose sum is σ = 787808. Its totient is φ = 225084.

The previous prime is 450169. The next prime is 450193. The reversal of 450172 is 271054.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 56268 + ... + 56275.

2⁴⁵⁰¹⁷² is an apocalyptic number.

It is an amenable number.

450172 is a deficient number, since it is larger than the sum of its proper divisors (337636).

450172 is a wasteful number, since it uses less digits than its factorization.

450172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112547 (or 112545 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 450172 is about 670.9485822326. The cubic root of 450172 is about 76.6407053455.

It can be divided in two parts, 4 and 50172, that added together give a square (50176 = 224²).

The spelling of 450172 in words is "four hundred fifty thousand, one hundred seventy-two".