486434640 has 80 divisors (see below), whose sum is σ = 1556614656. Its totient is φ = 125529600.

The previous prime is 486434639. The next prime is 486434677. The reversal of 486434640 is 46434684.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25251 + ... + 40130.

Almost surely, 2^486434640 is an apocalyptic number.

486434640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

486434640 is an abundant number, since it is smaller than the sum of its proper divisors (1070180016).

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

486434640 is a wasteful number, since it uses less digits than its factorization.

486434640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65428 (or 65422 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 39.

The square root of 486434640 is about 22055.2633174034. The cubic root of 486434640 is about 786.4567268307.

The spelling of 486434640 in words is "four hundred eighty-six million, four hundred thirty-four thousand, six hundred forty".