28342104 has 64 divisors (see below), whose sum is σ = 82122240. Its totient is φ = 7983360.

The previous prime is 28342103. The next prime is 28342123. The reversal of 28342104 is 40124382.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342103) 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, 11109 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (1283160).

Almost surely, 2^28342104 is an apocalyptic number.

28342104 is a gapful number since it is divisible by the number (24) 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 28342104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41061120).

28342104 is an abundant number, since it is smaller than the sum of its proper divisors (53780136).

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

28342104 is a wasteful number, since it uses less digits than its factorization.

28342104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28342104 is about 5323.7302711539. The cubic root of 28342104 is about 304.8905958951.

Adding to 28342104 its reverse (40124382), we get a palindrome (68466486).

The spelling of 28342104 in words is "twenty-eight million, three hundred forty-two thousand, one hundred four".