28466518 has 4 divisors (see below), whose sum is σ = 42699780. Its totient is φ = 14233258.

The previous prime is 28466513. The next prime is 28466519. The reversal of 28466518 is 81566482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81566482 = 2 ⋅40783241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28466513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7116628 + ... + 7116631.

It is an arithmetic number, because the mean of its divisors is an integer number (10674945).

Almost surely, 2^28466518 is an apocalyptic number.

28466518 is a deficient number, since it is larger than the sum of its proper divisors (14233262).

28466518 is a wasteful number, since it uses less digits than its factorization.

28466518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14233261.

The product of its digits is 92160, while the sum is 40.

The square root of 28466518 is about 5335.4023278475. The cubic root of 28466518 is about 305.3360731603.

The spelling of 28466518 in words is "twenty-eight million, four hundred sixty-six thousand, five hundred eighteen".