28068426 has 12 divisors (see below), whose sum is σ = 60814962. Its totient is φ = 9356136.

The previous prime is 28068421. The next prime is 28068431. The reversal of 28068426 is 62486082.

It is an interprime number because it is at equal distance from previous prime (28068421) and next prime (28068431).

It can be written as a sum of positive squares in only one way, i.e., 25492401 + 2576025 = 5049^2 + 1605^2 .

It is not an unprimeable number, because it can be changed into a prime (28068421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 779661 + ... + 779696.

Almost surely, 2^28068426 is an apocalyptic number.

28068426 is an abundant number, since it is smaller than the sum of its proper divisors (32746536).

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

28068426 is a wasteful number, since it uses less digits than its factorization.

28068426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559365 (or 1559362 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28068426 is about 5297.9643260407. The cubic root of 28068426 is about 303.9060550548.

The spelling of 28068426 in words is "twenty-eight million, sixty-eight thousand, four hundred twenty-six".