28544194 has 16 divisors (see below), whose sum is σ = 51508800. Its totient is φ = 11589264.

The previous prime is 28544183. The next prime is 28544203. The reversal of 28544194 is 49144582.

It is a super-2 number, since 2×28544194² = 1629542022219272, which contains 22 as substring.

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, 53389 + ... + 53920.

It is an arithmetic number, because the mean of its divisors is an integer number (3219300).

Almost surely, 2^28544194 is an apocalyptic number.

28544194 is a deficient number, since it is larger than the sum of its proper divisors (22964606).

28544194 is a wasteful number, since it uses less digits than its factorization.

28544194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107337.

The product of its digits is 46080, while the sum is 37.

The square root of 28544194 is about 5342.6766699848. The cubic root of 28544194 is about 305.6135423515.

The spelling of 28544194 in words is "twenty-eight million, five hundred forty-four thousand, one hundred ninety-four".