28261192 has 32 divisors (see below), whose sum is σ = 54774720. Its totient is φ = 13659840.

The previous prime is 28261171. The next prime is 28261201. The reversal of 28261192 is 29116282.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90717 + ... + 91027.

It is an arithmetic number, because the mean of its divisors is an integer number (1711710).

Almost surely, 2^28261192 is an apocalyptic number.

It is an amenable number.

28261192 is a deficient number, since it is larger than the sum of its proper divisors (26513528).

28261192 is a wasteful number, since it uses less digits than its factorization.

28261192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 657 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 28261192 is about 5316.1256569047. The cubic root of 28261192 is about 304.6001820196.

The spelling of 28261192 in words is "twenty-eight million, two hundred sixty-one thousand, one hundred ninety-two".