28740102 has 16 divisors (see below), whose sum is σ = 59462640. Its totient is φ = 9249632.

The previous prime is 28740097. The next prime is 28740113. The reversal of 28740102 is 20104782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82413 + ... + 82760.

It is an arithmetic number, because the mean of its divisors is an integer number (3716415).

Almost surely, 2^28740102 is an apocalyptic number.

28740102 is an abundant number, since it is smaller than the sum of its proper divisors (30722538).

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

28740102 is a wasteful number, since it uses less digits than its factorization.

28740102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165207.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 28740102 is about 5360.9795746673. The cubic root of 28740102 is about 306.3111236042.

Adding to 28740102 its reverse (20104782), we get a palindrome (48844884).

The spelling of 28740102 in words is "twenty-eight million, seven hundred forty thousand, one hundred two".