28143034 has 8 divisors (see below), whose sum is σ = 42237108. Its totient is φ = 14064000.

The previous prime is 28143013. The next prime is 28143061. The reversal of 28143034 is 43034182.

It can be written as a sum of positive squares in 2 ways, for example, as 28143025 + 9 = 5305^2 + 3^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5034 + ... + 9034.

Almost surely, 2^28143034 is an apocalyptic number.

28143034 is a deficient number, since it is larger than the sum of its proper divisors (14094074).

28143034 is a wasteful number, since it uses less digits than its factorization.

28143034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7520.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 28143034 is about 5305.0008482563. Note that the first 3 decimals coincide. The cubic root of 28143034 is about 304.1750852573.

The spelling of 28143034 in words is "twenty-eight million, one hundred forty-three thousand, thirty-four".