490142 has 4 divisors (see below), whose sum is σ = 735216. Its totient is φ = 245070.

The previous prime is 490121. The next prime is 490151. The reversal of 490142 is 241094.

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

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, 122534 + ... + 122537.

It is an arithmetic number, because the mean of its divisors is an integer number (183804).

2⁴⁹⁰¹⁴² is an apocalyptic number.

490142 is a deficient number, since it is larger than the sum of its proper divisors (245074).

490142 is a wasteful number, since it uses less digits than its factorization.

490142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245073.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 490142 is about 700.1014212241. The cubic root of 490142 is about 78.8449664764.

The spelling of 490142 in words is "four hundred ninety thousand, one hundred forty-two".