491454 has 32 divisors (see below), whose sum is σ = 1152000. Its totient is φ = 154872.

The previous prime is 491429. The next prime is 491461. The reversal of 491454 is 454194.

It is a super-3 number, since 3×491454³ = 356098281073333992, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

491454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2⁴⁹¹⁴⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576000).

491454 is an abundant number, since it is smaller than the sum of its proper divisors (660546).

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

491454 is a wasteful number, since it uses less digits than its factorization.

491454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 503 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 491454 is about 701.0378021191. The cubic root of 491454 is about 78.9152538855.

It can be divided in two parts, 4914 and 54, that multiplied together give a triangular number (265356 = T₇₂₈).

The spelling of 491454 in words is "four hundred ninety-one thousand, four hundred fifty-four".