28726016 has 54 divisors (see below), whose sum is σ = 63177996. Its totient is φ = 12928000.

The previous prime is 28726007. The next prime is 28726067. The reversal of 28726016 is 61062782.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284366 + ... + 284466.

Almost surely, 2^28726016 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 28726016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31588998).

28726016 is an abundant number, since it is smaller than the sum of its proper divisors (34451980).

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

28726016 is an equidigital number, since it uses as much as digits as its factorization.

28726016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28726016 is about 5359.6656612143. The cubic root of 28726016 is about 306.2610727081.

Adding to 28726016 its reverse (61062782), we get a palindrome (89788798).

It can be divided in two parts, 2872 and 6016, that added together give a palindrome (8888).

The spelling of 28726016 in words is "twenty-eight million, seven hundred twenty-six thousand, sixteen".