4886640 has 120 divisors (see below), whose sum is σ = 17931888. Its totient is φ = 1182720.

The previous prime is 4886639. The next prime is 4886641. The reversal of 4886640 is 466884.

4886640 is a `hidden beast` number, since 4 + 8 + 8 + 6 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (4886639) and next prime (4886641).

It is a tau number, because it is divible by the number of its divisors (120).

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 = 4886595 and 4886604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4886641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7612 + ... + 8228.

Almost surely, 2^4886640 is an apocalyptic number.

4886640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4886640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8965944).

4886640 is an abundant number, since it is smaller than the sum of its proper divisors (13045248).

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

4886640 is a wasteful number, since it uses less digits than its factorization.

4886640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 4886640 is about 2210.5745859391. The cubic root of 4886640 is about 169.6954177090.

The spelling of 4886640 in words is "four million, eight hundred eighty-six thousand, six hundred forty".