28876642 has 16 divisors (see below), whose sum is σ = 45995040. Its totient is φ = 13549888.

The previous prime is 28876621. The next prime is 28876649. The reversal of 28876642 is 24667882.

It is not an unprimeable number, because it can be changed into a prime (28876649) 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, 13233 + ... + 15259.

It is an arithmetic number, because the mean of its divisors is an integer number (2874690).

Almost surely, 2^28876642 is an apocalyptic number.

28876642 is a deficient number, since it is larger than the sum of its proper divisors (17118398).

28876642 is a wasteful number, since it uses less digits than its factorization.

28876642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its digits is 258048, while the sum is 43.

The square root of 28876642 is about 5373.6990983865. The cubic root of 28876642 is about 306.7954371521.

The spelling of 28876642 in words is "twenty-eight million, eight hundred seventy-six thousand, six hundred forty-two".