28014146 has 16 divisors (see below), whose sum is σ = 42681600. Its totient is φ = 13788768.

The previous prime is 28014139. The next prime is 28014149. The reversal of 28014146 is 64141082.

It is a super-2 number, since 2×28014146² = 1569584752218632, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28014149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48950 + ... + 49518.

It is an arithmetic number, because the mean of its divisors is an integer number (2667600).

Almost surely, 2^28014146 is an apocalyptic number.

28014146 is a deficient number, since it is larger than the sum of its proper divisors (14667454).

28014146 is a wasteful number, since it uses less digits than its factorization.

28014146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 28014146 is about 5292.8391247042. The cubic root of 28014146 is about 303.7100261824.

The spelling of 28014146 in words is "twenty-eight million, fourteen thousand, one hundred forty-six".