4521888 has 72 divisors (see below), whose sum is σ = 14702688. Its totient is φ = 1291392.

The previous prime is 4521863. The next prime is 4521889. The reversal of 4521888 is 8881254.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (4521889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 895 + ... + 3137.

It is an arithmetic number, because the mean of its divisors is an integer number (204204).

Almost surely, 2^4521888 is an apocalyptic number.

4521888 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 4521888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7351344).

4521888 is an abundant number, since it is smaller than the sum of its proper divisors (10180800).

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

4521888 is a wasteful number, since it uses less digits than its factorization.

4521888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266 (or 2255 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 4521888 is about 2126.4731364398. The cubic root of 4521888 is about 165.3636058569.

The spelling of 4521888 in words is "four million, five hundred twenty-one thousand, eight hundred eighty-eight".