28341225 has 72 divisors (see below), whose sum is σ = 57392160. Its totient is φ = 13701600.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341225 is 52214382.

It is not a de Polignac number, because 28341225 - 2⁸ = 28340969 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81502 + ... + 81848.

Almost surely, 2^28341225 is an apocalyptic number.

28341225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28341225 is an abundant number, since it is smaller than the sum of its proper divisors (29050935).

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

28341225 is a wasteful number, since it uses less digits than its factorization.

28341225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 366 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 28341225 is about 5323.6477156176. The cubic root of 28341225 is about 304.8874439108.

The spelling of 28341225 in words is "twenty-eight million, three hundred forty-one thousand, two hundred twenty-five".