4528215 has 24 divisors (see below), whose sum is σ = 8019648. Its totient is φ = 2362560.

The previous prime is 4528211. The next prime is 4528219. The reversal of 4528215 is 5128254.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4528211) and next prime (4528219).

It is not a de Polignac number, because 4528215 - 2² = 4528211 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4528211) 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, 1045 + ... + 3185.

It is an arithmetic number, because the mean of its divisors is an integer number (334152).

Almost surely, 2^4528215 is an apocalyptic number.

4528215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4528215 is a deficient number, since it is larger than the sum of its proper divisors (3491433).

4528215 is a wasteful number, since it uses less digits than its factorization.

4528215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199 (or 2196 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 4528215 is about 2127.9602909829. The cubic root of 4528215 is about 165.4406951864.

The spelling of 4528215 in words is "four million, five hundred twenty-eight thousand, two hundred fifteen".