4881640 has 16 divisors (see below), whose sum is σ = 10983780. Its totient is φ = 1952640.

The previous prime is 4881631. The next prime is 4881641. The reversal of 4881640 is 461884.

It can be written as a sum of positive squares in 2 ways, for example, as 4656964 + 224676 = 2158^2 + 474^2 .

It is not an unprimeable number, because it can be changed into a prime (4881641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60981 + ... + 61060.

Almost surely, 2^4881640 is an apocalyptic number.

4881640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4881640 is an abundant number, since it is smaller than the sum of its proper divisors (6102140).

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

4881640 is a wasteful number, since it uses less digits than its factorization.

4881640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122052 (or 122048 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 4881640 is about 2209.4433688149. The cubic root of 4881640 is about 169.6375206236.

The spelling of 4881640 in words is "four million, eight hundred eighty-one thousand, six hundred forty".