3625128 has 64 divisors (see below), whose sum is σ = 10852800. Its totient is φ = 1114560.

The previous prime is 3625123. The next prime is 3625133. The reversal of 3625128 is 8215263.

It is an interprime number because it is at equal distance from previous prime (3625123) and next prime (3625133).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3625123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

Almost surely, 2^3625128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3625128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5426400).

3625128 is an abundant number, since it is smaller than the sum of its proper divisors (7227672).

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

3625128 is a wasteful number, since it uses less digits than its factorization.

3625128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1309 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3625128 is about 1903.9768906161. The cubic root of 3625128 is about 153.6176493391.

The spelling of 3625128 in words is "three million, six hundred twenty-five thousand, one hundred twenty-eight".