28134132 has 24 divisors (see below), whose sum is σ = 70696416. Its totient is φ = 8656608.

The previous prime is 28134121. The next prime is 28134137. The reversal of 28134132 is 23143182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28134137) 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, 90018 + ... + 90329.

It is an arithmetic number, because the mean of its divisors is an integer number (2945684).

Almost surely, 2^28134132 is an apocalyptic number.

It is an amenable number.

28134132 is an abundant number, since it is smaller than the sum of its proper divisors (42562284).

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

28134132 is a wasteful number, since it uses less digits than its factorization.

28134132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180367 (or 180365 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 28134132 is about 5304.1617622392. The cubic root of 28134132 is about 304.1430103910.

The spelling of 28134132 in words is "twenty-eight million, one hundred thirty-four thousand, one hundred thirty-two".