28154496 has 64 divisors (see below), whose sum is σ = 75422880. Its totient is φ = 9305088.

The previous prime is 28154471. The next prime is 28154509. The reversal of 28154496 is 69445182.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 60055 + ... + 60521.

Almost surely, 2^28154496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28154496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37711440).

28154496 is an abundant number, since it is smaller than the sum of its proper divisors (47268384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28154496 is a wasteful number, since it uses less digits than its factorization.

28154496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 629 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 28154496 is about 5306.0810397128. The cubic root of 28154496 is about 304.2163741202.

The spelling of 28154496 in words is "twenty-eight million, one hundred fifty-four thousand, four hundred ninety-six".