4639488 has 72 divisors (see below), whose sum is σ = 14128128. Its totient is φ = 1324032.

The previous prime is 4639483. The next prime is 4639489. The reversal of 4639488 is 8849364.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (4639483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4945 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (196224).

Almost surely, 2^4639488 is an apocalyptic number.

4639488 is a gapful number since it is divisible by the number (48) 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 4639488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7064064).

4639488 is an abundant number, since it is smaller than the sum of its proper divisors (9488640).

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

4639488 is an equidigital number, since it uses as much as digits as its factorization.

4639488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 875 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 4639488 is about 2153.9470745587. The cubic root of 4639488 is about 166.7848832403.

The spelling of 4639488 in words is "four million, six hundred thirty-nine thousand, four hundred eighty-eight".