28160144 has 20 divisors (see below), whose sum is σ = 55722624. Its totient is φ = 13780128.

The previous prime is 28160137. The next prime is 28160173. The reversal of 28160144 is 44106182.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17972 + ... + 19475.

Almost surely, 2^28160144 is an apocalyptic number.

It is an amenable number.

28160144 is a deficient number, since it is larger than the sum of its proper divisors (27562480).

28160144 is a wasteful number, since it uses less digits than its factorization.

28160144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37502 (or 37496 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 28160144 is about 5306.6132325618. The cubic root of 28160144 is about 304.2367154445.

The spelling of 28160144 in words is "twenty-eight million, one hundred sixty thousand, one hundred forty-four".