28666302 has 16 divisors (see below), whose sum is σ = 65523072. Its totient is φ = 8190360.

The previous prime is 28666283. The next prime is 28666327. The reversal of 28666302 is 20366682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341224 + ... + 341307.

It is an arithmetic number, because the mean of its divisors is an integer number (4095192).

Almost surely, 2^28666302 is an apocalyptic number.

28666302 is an abundant number, since it is smaller than the sum of its proper divisors (36856770).

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

28666302 is a wasteful number, since it uses less digits than its factorization.

28666302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682543.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 28666302 is about 5354.0920798955. The cubic root of 28666302 is about 306.0487128224.

The spelling of 28666302 in words is "twenty-eight million, six hundred sixty-six thousand, three hundred two".