28137454 has 16 divisors (see below), whose sum is σ = 43574400. Its totient is φ = 13620024.

The previous prime is 28137451. The next prime is 28137479. The reversal of 28137454 is 45473182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28137451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6127 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (2723400).

Almost surely, 2^28137454 is an apocalyptic number.

28137454 is a deficient number, since it is larger than the sum of its proper divisors (15436946).

28137454 is a wasteful number, since it uses less digits than its factorization.

28137454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687.

The product of its digits is 26880, while the sum is 34.

The square root of 28137454 is about 5304.4749033246. The cubic root of 28137454 is about 304.1549807066.

The spelling of 28137454 in words is "twenty-eight million, one hundred thirty-seven thousand, four hundred fifty-four".