403494 has 32 divisors (see below), whose sum is σ = 994560. Its totient is φ = 106272.

The previous prime is 403483. The next prime is 403499. The reversal of 403494 is 494304.

403494 is nontrivially palindromic in base 16.

It is a super-3 number, since 3×403494³ = 197075436894233352, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (31080).

2⁴⁰³⁴⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497280).

403494 is an abundant number, since it is smaller than the sum of its proper divisors (591066).

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

403494 is a wasteful number, since it uses less digits than its factorization.

403494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 403494 is about 635.2117757095. The cubic root of 403494 is about 73.8945417710.

Adding to 403494 its reverse (494304), we get a palindrome (897798).

The spelling of 403494 in words is "four hundred three thousand, four hundred ninety-four".