28652266 has 16 divisors (see below), whose sum is σ = 45424800. Its totient is φ = 13516848.

The previous prime is 28652207. The next prime is 28652269. The reversal of 28652266 is 66225682.

28652266 = 1219² + 1220² + ... + 1237².

It is not an unprimeable number, because it can be changed into a prime (28652269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8821 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (2839050).

Almost surely, 2^28652266 is an apocalyptic number.

28652266 is a deficient number, since it is larger than the sum of its proper divisors (16772534).

28652266 is a wasteful number, since it uses less digits than its factorization.

28652266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093.

The product of its digits is 69120, while the sum is 37.

The square root of 28652266 is about 5352.7811462827. The cubic root of 28652266 is about 305.9987540354.

The spelling of 28652266 in words is "twenty-eight million, six hundred fifty-two thousand, two hundred sixty-six".