28374666 has 32 divisors (see below), whose sum is σ = 60523200. Its totient is φ = 8837376.

The previous prime is 28374623. The next prime is 28374677. The reversal of 28374666 is 66647382.

It is a super-2 number, since 2×28374666² = 1610243341223112, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14265 + ... + 16131.

It is an arithmetic number, because the mean of its divisors is an integer number (1891350).

Almost surely, 2^28374666 is an apocalyptic number.

28374666 is an abundant number, since it is smaller than the sum of its proper divisors (32148534).

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

28374666 is a wasteful number, since it uses less digits than its factorization.

28374666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038.

The product of its digits is 290304, while the sum is 42.

The square root of 28374666 is about 5326.7875872800. The cubic root of 28374666 is about 305.0073132708.

It can be divided in two parts, 2837 and 4666, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 28374666 in words is "twenty-eight million, three hundred seventy-four thousand, six hundred sixty-six".