28549416 has 32 divisors (see below), whose sum is σ = 81570240. Its totient is φ = 8156928.

The previous prime is 28549399. The next prime is 28549441. The reversal of 28549416 is 61494582.

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, 84801 + ... + 85136.

It is an arithmetic number, because the mean of its divisors is an integer number (2549070).

Almost surely, 2^28549416 is an apocalyptic number.

It is an amenable number.

28549416 is an abundant number, since it is smaller than the sum of its proper divisors (53020824).

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

28549416 is a wasteful number, since it uses less digits than its factorization.

28549416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169953 (or 169949 counting only the distinct ones).

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

The square root of 28549416 is about 5343.1653539826. The cubic root of 28549416 is about 305.6321779755.

The spelling of 28549416 in words is "twenty-eight million, five hundred forty-nine thousand, four hundred sixteen".