493040 has 20 divisors (see below), whose sum is σ = 1146504. Its totient is φ = 197184.

The previous prime is 493027. The next prime is 493043. The reversal of 493040 is 40394.

It is a Cunningham number, because it is equal to 79³+1.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

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 (493043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002 + ... + 3161.

2⁴⁹³⁰⁴⁰ is an apocalyptic number.

493040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

493040 is an abundant number, since it is smaller than the sum of its proper divisors (653464).

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

493040 is a wasteful number, since it uses less digits than its factorization.

493040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176 (or 6170 counting only the distinct ones).

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

The square root of 493040 is about 702.1680710485. The cubic root of 493040 is about 79.0000534102. Note that the first 4 decimals are identical.

The spelling of 493040 in words is "four hundred ninety-three thousand, forty".