501494 has 16 divisors (see below), whose sum is σ = 870048. Its totient is φ = 212352.

The previous prime is 501493. The next prime is 501503. The reversal of 501494 is 494105.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (54378).

2⁵⁰¹⁴⁹⁴ is an apocalyptic number.

501494 is a deficient number, since it is larger than the sum of its proper divisors (368554).

501494 is a wasteful number, since it uses less digits than its factorization.

501494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 501494 is about 708.1624107505. The cubic root of 501494 is about 79.4490265649.

Adding to 501494 its reverse (494105), we get a palindrome (995599).

The spelling of 501494 in words is "five hundred one thousand, four hundred ninety-four".