28071834 has 32 divisors (see below), whose sum is σ = 65222016. Its totient is φ = 7888320.

The previous prime is 28071809. The next prime is 28071847. The reversal of 28071834 is 43817082.

It is a junction number, because it is equal to n+sod(n) for n = 28071795 and 28071804.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2917 + ... + 8040.

It is an arithmetic number, because the mean of its divisors is an integer number (2038188).

Almost surely, 2^28071834 is an apocalyptic number.

28071834 is an abundant number, since it is smaller than the sum of its proper divisors (37150182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28071834 is a wasteful number, since it uses less digits than its factorization.

28071834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11030.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28071834 is about 5298.2859492481. The cubic root of 28071834 is about 303.9183544017.

The spelling of 28071834 in words is "twenty-eight million, seventy-one thousand, eight hundred thirty-four".