448491 has 4 divisors (see below), whose sum is σ = 597992. Its totient is φ = 298992.

The previous prime is 448451. The next prime is 448519. The reversal of 448491 is 194844.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 448491 - 2⁷ = 448363 is a prime.

It is a super-2 number, since 2×448491² = 402288354162, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (448421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74746 + ... + 74751.

It is an arithmetic number, because the mean of its divisors is an integer number (149498).

2⁴⁴⁸⁴⁹¹ is an apocalyptic number.

448491 is a deficient number, since it is larger than the sum of its proper divisors (149501).

448491 is a wasteful number, since it uses less digits than its factorization.

448491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149500.

The product of its digits is 4608, while the sum is 30.

The square root of 448491 is about 669.6947065641. The cubic root of 448491 is about 76.5451909504.

It can be divided in two parts, 44849 and 1, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 448491 in words is "four hundred forty-eight thousand, four hundred ninety-one".