28492144 has 20 divisors (see below), whose sum is σ = 56488696. Its totient is φ = 13914432.

The previous prime is 28492141. The next prime is 28492151. The reversal of 28492144 is 44129482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28492141) 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 3 ways as a sum of consecutive naturals, for example, 20019 + ... + 21394.

Almost surely, 2^28492144 is an apocalyptic number.

It is an amenable number.

28492144 is a deficient number, since it is larger than the sum of its proper divisors (27996552).

28492144 is a wasteful number, since it uses less digits than its factorization.

28492144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41464 (or 41458 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 28492144 is about 5337.8032934907. The cubic root of 28492144 is about 305.4276684333.

The spelling of 28492144 in words is "twenty-eight million, four hundred ninety-two thousand, one hundred forty-four".