490340 has 12 divisors (see below), whose sum is σ = 1029756. Its totient is φ = 196128.

The previous prime is 490339. The next prime is 490367. The reversal of 490340 is 43094.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 350464 = 374^2 + 592^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 24517 = 490340 / (4 + 9 + 0 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12239 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (85813).

2⁴⁹⁰³⁴⁰ is an apocalyptic number.

It is an amenable number.

490340 is an abundant number, since it is smaller than the sum of its proper divisors (539416).

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

490340 is a wasteful number, since it uses less digits than its factorization.

490340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24526 (or 24524 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 490340 is about 700.2428150292. The cubic root of 490340 is about 78.8555819047.

The spelling of 490340 in words is "four hundred ninety thousand, three hundred forty".