28542338 has 16 divisors (see below), whose sum is σ = 46892736. Its totient is φ = 12921840.

The previous prime is 28542323. The next prime is 28542341. The reversal of 28542338 is 83324582.

It is a junction number, because it is equal to n+sod(n) for n = 28542298 and 28542307.

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, 3320 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (2930796).

Almost surely, 2^28542338 is an apocalyptic number.

28542338 is a deficient number, since it is larger than the sum of its proper divisors (18350398).

28542338 is a wasteful number, since it uses less digits than its factorization.

28542338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209.

The product of its digits is 46080, while the sum is 35.

The square root of 28542338 is about 5342.5029714545. The cubic root of 28542338 is about 305.6069183420.

The spelling of 28542338 in words is "twenty-eight million, five hundred forty-two thousand, three hundred thirty-eight".