489740 has 24 divisors (see below), whose sum is σ = 1052352. Its totient is φ = 191360.

The previous prime is 489733. The next prime is 489743. The reversal of 489740 is 47984.

489740 = T₂₄₈ + T₂₄₉ + ... + T₂₆₂.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 489697 and 489706.

It is not an unprimeable number, because it can be changed into a prime (489743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2⁴⁸⁹⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

489740 is an abundant number, since it is smaller than the sum of its proper divisors (562612).

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

489740 is a wasteful number, since it uses less digits than its factorization.

489740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 489740 is about 699.8142610722. The cubic root of 489740 is about 78.8234051427.

The spelling of 489740 in words is "four hundred eighty-nine thousand, seven hundred forty".