490874 has 4 divisors (see below), whose sum is σ = 736314. Its totient is φ = 245436.

The previous prime is 490859. The next prime is 490877. The reversal of 490874 is 478094.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 310249 + 180625 = 557^2 + 425^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 490874.

It is not an unprimeable number, because it can be changed into a prime (490877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122717 + ... + 122720.

2⁴⁹⁰⁸⁷⁴ is an apocalyptic number.

490874 is a deficient number, since it is larger than the sum of its proper divisors (245440).

490874 is a wasteful number, since it uses less digits than its factorization.

490874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245439.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 490874 is about 700.6240075818. The cubic root of 490874 is about 78.8841971539.

The spelling of 490874 in words is "four hundred ninety thousand, eight hundred seventy-four".