16775028 has 36 divisors (see below), whose sum is σ = 43007328. Its totient is φ = 5512080.

The previous prime is 16775009. The next prime is 16775041. The reversal of 16775028 is 82057761.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16774983 and 16775001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726 + ... + 5837.

It is an arithmetic number, because the mean of its divisors is an integer number (1194648).

Almost surely, 2^16775028 is an apocalyptic number.

16775028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16775028 is an abundant number, since it is smaller than the sum of its proper divisors (26232300).

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

16775028 is a wasteful number, since it uses less digits than its factorization.

16775028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644 (or 6639 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 16775028 is about 4095.7329014476. The cubic root of 16775028 is about 255.9888707727.

The spelling of 16775028 in words is "sixteen million, seven hundred seventy-five thousand, twenty-eight".