501490 has 32 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 176640.

The previous prime is 501463. The next prime is 501493. The reversal of 501490 is 94105.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5122 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁵⁰¹⁴⁹⁰ is an apocalyptic number.

501490 is an abundant number, since it is smaller than the sum of its proper divisors (514574).

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

501490 is a wasteful number, since it uses less digits than its factorization.

501490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 501490 is about 708.1595865340. The cubic root of 501490 is about 79.4488153314.

Adding to 501490 its reverse (94105), we get a palindrome (595595).

It can be divided in two parts, 50 and 1490, that added together give a triangular number (1540 = T₅₅).

The spelling of 501490 in words is "five hundred one thousand, four hundred ninety".