28374466 has 4 divisors (see below), whose sum is σ = 42561702. Its totient is φ = 14187232.

The previous prime is 28374461. The next prime is 28374473. The reversal of 28374466 is 66447382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66447382 = 2 ⋅33223691.

It can be written as a sum of positive squares in only one way, i.e., 26061025 + 2313441 = 5105^2 + 1521^2 .

It is a super-2 number, since 2×28374466² = 1610220641570312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28374461) 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 as a sum of consecutive naturals, namely, 7093615 + ... + 7093618.

Almost surely, 2^28374466 is an apocalyptic number.

28374466 is a deficient number, since it is larger than the sum of its proper divisors (14187236).

28374466 is a wasteful number, since it uses less digits than its factorization.

28374466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14187235.

The product of its digits is 193536, while the sum is 40.

The square root of 28374466 is about 5326.7688142062. The cubic root of 28374466 is about 305.0065966503.

The spelling of 28374466 in words is "twenty-eight million, three hundred seventy-four thousand, four hundred sixty-six".