28433648 has 10 divisors (see below), whose sum is σ = 55090224. Its totient is φ = 14216816.

The previous prime is 28433617. The next prime is 28433663. The reversal of 28433648 is 84633482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 888536 + ... + 888567.

Almost surely, 2^28433648 is an apocalyptic number.

It is an amenable number.

28433648 is a deficient number, since it is larger than the sum of its proper divisors (26656576).

28433648 is a wasteful number, since it uses less digits than its factorization.

28433648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777111 (or 1777105 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 28433648 is about 5332.3210706033. The cubic root of 28433648 is about 305.2185050735.

The spelling of 28433648 in words is "twenty-eight million, four hundred thirty-three thousand, six hundred forty-eight".