493890 has 32 divisors (see below), whose sum is σ = 1204416. Its totient is φ = 129600.

The previous prime is 493877. The next prime is 493897. The reversal of 493890 is 98394.

493890 = T₄₄ + T₄₅ + ... + T₁₄₄.

493890 is nontrivially palindromic in base 14.

493890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 493890.

It is not an unprimeable number, because it can be changed into a prime (493897) by changing a digit.

493890 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, 2949 + ... + 3111.

It is an arithmetic number, because the mean of its divisors is an integer number (37638).

2⁴⁹³⁸⁹⁰ is an apocalyptic number.

493890 is an abundant number, since it is smaller than the sum of its proper divisors (710526).

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

493890 is a wasteful number, since it uses less digits than its factorization.

493890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 493890 is about 702.7730785965. The cubic root of 493890 is about 79.0454259922.

The spelling of 493890 in words is "four hundred ninety-three thousand, eight hundred ninety".