28004496 has 40 divisors (see below), whose sum is σ = 77911680. Its totient is φ = 8616576.

The previous prime is 28004489. The next prime is 28004497. The reversal of 28004496 is 69440082.

It is not an unprimeable number, because it can be changed into a prime (28004497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21816 + ... + 23063.

It is an arithmetic number, because the mean of its divisors is an integer number (1947792).

Almost surely, 2^28004496 is an apocalyptic number.

28004496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28004496 is an abundant number, since it is smaller than the sum of its proper divisors (49907184).

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

28004496 is a wasteful number, since it uses less digits than its factorization.

28004496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44903 (or 44897 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28004496 is about 5291.9274371442. The cubic root of 28004496 is about 303.6751492987.

The spelling of 28004496 in words is "twenty-eight million, four thousand, four hundred ninety-six".