28600138 has 16 divisors (see below), whose sum is σ = 49120704. Its totient is φ = 12234240.

The previous prime is 28600129. The next prime is 28600153. The reversal of 28600138 is 83100682.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7381 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (3070044).

Almost surely, 2^28600138 is an apocalyptic number.

28600138 is a deficient number, since it is larger than the sum of its proper divisors (20520566).

28600138 is a wasteful number, since it uses less digits than its factorization.

28600138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28600138 is about 5347.9096851013. The cubic root of 28600138 is about 305.8130702191.

The spelling of 28600138 in words is "twenty-eight million, six hundred thousand, one hundred thirty-eight".