28341201 has 16 divisors (see below), whose sum is σ = 43833344. Its totient is φ = 15952464.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341201 is 10214382.

It is not a de Polignac number, because 28341201 - 2¹⁸ = 28079057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28341281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8665 + ... + 11478.

It is an arithmetic number, because the mean of its divisors is an integer number (2739584).

Almost surely, 2^28341201 is an apocalyptic number.

28341201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28341201 is a deficient number, since it is larger than the sum of its proper divisors (15492143).

28341201 is a wasteful number, since it uses less digits than its factorization.

28341201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28341201 is about 5323.6454615235. The cubic root of 28341201 is about 304.8873578489.

Adding to 28341201 its reverse (10214382), we get a palindrome (38555583).

The spelling of 28341201 in words is "twenty-eight million, three hundred forty-one thousand, two hundred one".