28642341 has 16 divisors (see below), whose sum is σ = 47003264. Its totient is φ = 15107904.

The previous prime is 28642321. The next prime is 28642349. The reversal of 28642341 is 14324682.

It is not a de Polignac number, because 28642341 - 2⁵ = 28642309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28642299 and 28642308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28642349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52186 + ... + 52731.

It is an arithmetic number, because the mean of its divisors is an integer number (2937704).

Almost surely, 2^28642341 is an apocalyptic number.

28642341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28642341 is a deficient number, since it is larger than the sum of its proper divisors (18360923).

28642341 is a wasteful number, since it uses less digits than its factorization.

28642341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104940.

The product of its digits is 9216, while the sum is 30.

The square root of 28642341 is about 5351.8539778286. The cubic root of 28642341 is about 305.9634178148.

The spelling of 28642341 in words is "twenty-eight million, six hundred forty-two thousand, three hundred forty-one".