28261594 has 16 divisors (see below), whose sum is σ = 43156800. Its totient is φ = 13878304.

The previous prime is 28261591. The next prime is 28261601. The reversal of 28261594 is 49516282.

It is not an unprimeable number, because it can be changed into a prime (28261591) 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, 31419 + ... + 32305.

It is an arithmetic number, because the mean of its divisors is an integer number (2697300).

Almost surely, 2^28261594 is an apocalyptic number.

28261594 is a deficient number, since it is larger than the sum of its proper divisors (14895206).

28261594 is a wasteful number, since it uses less digits than its factorization.

28261594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its digits is 34560, while the sum is 37.

The square root of 28261594 is about 5316.1634662602. The cubic root of 28261594 is about 304.6016262698.

The spelling of 28261594 in words is "twenty-eight million, two hundred sixty-one thousand, five hundred ninety-four".