28406104 has 32 divisors (see below), whose sum is σ = 55883520. Its totient is φ = 13510816.

The previous prime is 28406087. The next prime is 28406107. The reversal of 28406104 is 40160482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28406107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48099 + ... + 48685.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^28406104 is an apocalyptic number.

It is an amenable number.

28406104 is a deficient number, since it is larger than the sum of its proper divisors (27477416).

28406104 is a wasteful number, since it uses less digits than its factorization.

28406104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 28406104 is about 5329.7377046155. The cubic root of 28406104 is about 305.1199170133.

Adding to 28406104 its reverse (40160482), we get a palindrome (68566586).

The spelling of 28406104 in words is "twenty-eight million, four hundred six thousand, one hundred four".