28782466 has 8 divisors (see below), whose sum is σ = 43295040. Its totient is φ = 14350788.

The previous prime is 28782461. The next prime is 28782469. The reversal of 28782466 is 66428782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28782461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19326 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (5411880).

Almost surely, 2^28782466 is an apocalyptic number.

28782466 is a deficient number, since it is larger than the sum of its proper divisors (14512574).

28782466 is a wasteful number, since it uses less digits than its factorization.

28782466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40448.

The product of its digits is 258048, while the sum is 43.

The square root of 28782466 is about 5364.9292632802. The cubic root of 28782466 is about 306.4615544514.

The spelling of 28782466 in words is "twenty-eight million, seven hundred eighty-two thousand, four hundred sixty-six".