28292043 has 8 divisors (see below), whose sum is σ = 40624528. Its totient is φ = 17410464.

The previous prime is 28292003. The next prime is 28292053. The reversal of 28292043 is 34029282.

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

It is not a de Polignac number, because 28292043 - 2⁹ = 28291531 is a prime.

It is a super-2 number, since 2×28292043² = 1600879394227698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28292043.

It is not an unprimeable number, because it can be changed into a prime (28292003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362680 + ... + 362757.

It is an arithmetic number, because the mean of its divisors is an integer number (5078066).

Almost surely, 2^28292043 is an apocalyptic number.

28292043 is a deficient number, since it is larger than the sum of its proper divisors (12332485).

28292043 is a wasteful number, since it uses less digits than its factorization.

28292043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725453.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28292043 is about 5319.0265086762. The cubic root of 28292043 is about 304.7109794556.

The spelling of 28292043 in words is "twenty-eight million, two hundred ninety-two thousand, forty-three".