490143 has 8 divisors (see below), whose sum is σ = 688000. Its totient is φ = 309528.

The previous prime is 490121. The next prime is 490151. The reversal of 490143 is 341094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490143 - 2⁵ = 490111 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243 + ... + 4356.

It is an arithmetic number, because the mean of its divisors is an integer number (86000).

2⁴⁹⁰¹⁴³ is an apocalyptic number.

490143 is a deficient number, since it is larger than the sum of its proper divisors (197857).

490143 is a wasteful number, since it uses less digits than its factorization.

490143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8621.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 490143 is about 700.1021354060. The cubic root of 490143 is about 78.8450200969.

The spelling of 490143 in words is "four hundred ninety thousand, one hundred forty-three".