28914080 has 48 divisors (see below), whose sum is σ = 73569384. Its totient is φ = 10675200.

The previous prime is 28914043. The next prime is 28914113. The reversal of 28914080 is 8041982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22543504 + 6370576 = 4748^2 + 2524^2 .

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

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, 4871 + ... + 9030.

Almost surely, 2^28914080 is an apocalyptic number.

28914080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28914080 is an abundant number, since it is smaller than the sum of its proper divisors (44655304).

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

28914080 is a wasteful number, since it uses less digits than its factorization.

28914080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929 (or 13921 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28914080 is about 5377.1814178062. The cubic root of 28914080 is about 306.9279646512.

The spelling of 28914080 in words is "twenty-eight million, nine hundred fourteen thousand, eighty".