497440 has 24 divisors (see below), whose sum is σ = 1175580. Its totient is φ = 198912.

The previous prime is 497423. The next prime is 497449. The reversal of 497440 is 44794.

497440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 467856 + 29584 = 684^2 + 172^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 497399 and 497408.

It is not an unprimeable number, because it can be changed into a prime (497449) 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, 1395 + ... + 1714.

2⁴⁹⁷⁴⁴⁰ is an apocalyptic number.

497440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497440 is an abundant number, since it is smaller than the sum of its proper divisors (678140).

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

497440 is a wasteful number, since it uses less digits than its factorization.

497440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 497440 is about 705.2942648285. The cubic root of 497440 is about 79.2343625334.

The spelling of 497440 in words is "four hundred ninety-seven thousand, four hundred forty".