28107274 has 16 divisors (see below), whose sum is σ = 45497088. Its totient is φ = 12946032.

The previous prime is 28107271. The next prime is 28107283. The reversal of 28107274 is 47270182.

It is a super-2 number, since 2×28107274² = 1580037703422152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28107271) by changing a digit.

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, 18159 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (2843568).

Almost surely, 2^28107274 is an apocalyptic number.

28107274 is a deficient number, since it is larger than the sum of its proper divisors (17389814).

28107274 is a wasteful number, since it uses less digits than its factorization.

28107274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 28107274 is about 5301.6293721836. The cubic root of 28107274 is about 304.0461970998.

The spelling of 28107274 in words is "twenty-eight million, one hundred seven thousand, two hundred seventy-four".