487940 has 24 divisors (see below), whose sum is σ = 1059072. Its totient is φ = 188640.

The previous prime is 487933. The next prime is 487943. The reversal of 487940 is 49784.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 487897 and 487906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487943) by changing a digit.

487940 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (44128).

2⁴⁸⁷⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529536).

487940 is an abundant number, since it is smaller than the sum of its proper divisors (571132).

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

487940 is a wasteful number, since it uses less digits than its factorization.

487940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 825 counting only the distinct ones).

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

The square root of 487940 is about 698.5270216677. The cubic root of 487940 is about 78.7267168928.

The spelling of 487940 in words is "four hundred eighty-seven thousand, nine hundred forty".