28343026 has 4 divisors (see below), whose sum is σ = 42514542. Its totient is φ = 14171512.

The previous prime is 28343023. The next prime is 28343047. The reversal of 28343026 is 62034382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18071001 + 10272025 = 4251^2 + 3205^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28342985 and 28343003.

It is not an unprimeable number, because it can be changed into a prime (28343023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7085755 + ... + 7085758.

Almost surely, 2^28343026 is an apocalyptic number.

28343026 is a deficient number, since it is larger than the sum of its proper divisors (14171516).

28343026 is a wasteful number, since it uses less digits than its factorization.

28343026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171515.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 28343026 is about 5323.8168638675. The cubic root of 28343026 is about 304.8939020021.

The spelling of 28343026 in words is "twenty-eight million, three hundred forty-three thousand, twenty-six".