490490 has 64 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 141120.

The previous prime is 490481. The next prime is 490493. The reversal of 490490 is 94094.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37724 + ... + 37736.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2⁴⁹⁰⁴⁹⁰ is an apocalyptic number.

490490 is the 572-nd pentagonal number.

490490 is an abundant number, since it is smaller than the sum of its proper divisors (719110).

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

490490 is a wasteful number, since it uses less digits than its factorization.

490490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 490490 is about 700.3499125437. The cubic root of 490490 is about 78.8636219934.

It can be divided in two parts, 4904 and 90, that added together give a palindrome (4994).

The spelling of 490490 in words is "four hundred ninety thousand, four hundred ninety".