487304640 has 112 divisors (see below), whose sum is σ = 1719132960. Its totient is φ = 129945600.

The previous prime is 487304621. The next prime is 487304641. The reversal of 487304640 is 46403784.

487304640 is a `hidden beast` number, since 4 + 8 + 7 + 3 + 0 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 487304595 and 487304604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487304641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19561 + ... + 36840.

Almost surely, 2^487304640 is an apocalyptic number.

487304640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487304640 is an abundant number, since it is smaller than the sum of its proper divisors (1231828320).

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

487304640 is a wasteful number, since it uses less digits than its factorization.

487304640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56427 (or 56411 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 487304640 is about 22074.9776896830. The cubic root of 487304640 is about 786.9253131442.

The spelling of 487304640 in words is "four hundred eighty-seven million, three hundred four thousand, six hundred forty".