28041123 has 8 divisors (see below), whose sum is σ = 40787136. Its totient is φ = 16994600.

The previous prime is 28041113. The next prime is 28041127. The reversal of 28041123 is 32114082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28041123 - 2¹⁶ = 27975587 is a prime.

It is a super-2 number, since 2×28041123² = 1572609158202258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28041123.

It is not an unprimeable number, because it can be changed into a prime (28041127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424833 + ... + 424898.

It is an arithmetic number, because the mean of its divisors is an integer number (5098392).

Almost surely, 2^28041123 is an apocalyptic number.

28041123 is a deficient number, since it is larger than the sum of its proper divisors (12746013).

28041123 is a wasteful number, since it uses less digits than its factorization.

28041123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849745.

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

The square root of 28041123 is about 5295.3869546993. The cubic root of 28041123 is about 303.8074835745.

The spelling of 28041123 in words is "twenty-eight million, forty-one thousand, one hundred twenty-three".