28743134 has 16 divisors (see below), whose sum is σ = 50011008. Its totient is φ = 12134232.

The previous prime is 28743133. The next prime is 28743151. The reversal of 28743134 is 43134782.

It is a self number, because there is not a number n which added to its sum of digits gives 28743134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28743131) 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, 14384 + ... + 16259.

It is an arithmetic number, because the mean of its divisors is an integer number (3125688).

Almost surely, 2^28743134 is an apocalyptic number.

28743134 is a deficient number, since it is larger than the sum of its proper divisors (21267874).

28743134 is a wasteful number, since it uses less digits than its factorization.

28743134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30719.

The product of its digits is 16128, while the sum is 32.

The square root of 28743134 is about 5361.2623513497. The cubic root of 28743134 is about 306.3218948797.

The spelling of 28743134 in words is "twenty-eight million, seven hundred forty-three thousand, one hundred thirty-four".