490431 has 4 divisors (see below), whose sum is σ = 653912. Its totient is φ = 326952.

The previous prime is 490421. The next prime is 490453. The reversal of 490431 is 134094.

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

It is not a de Polignac number, because 490431 - 2⁶ = 490367 is a prime.

It is a super-2 number, since 2×490431² = 481045131522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 490398 and 490407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81736 + ... + 81741.

It is an arithmetic number, because the mean of its divisors is an integer number (163478).

2⁴⁹⁰⁴³¹ is an apocalyptic number.

490431 is a deficient number, since it is larger than the sum of its proper divisors (163481).

490431 is a wasteful number, since it uses less digits than its factorization.

490431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163480.

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

The square root of 490431 is about 700.3077894755. The cubic root of 490431 is about 78.8604597541.

The spelling of 490431 in words is "four hundred ninety thousand, four hundred thirty-one".