28438076 has 12 divisors (see below), whose sum is σ = 52694208. Its totient is φ = 13382592.

The previous prime is 28438063. The next prime is 28438103. The reversal of 28438076 is 67083482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209036 + ... + 209171.

It is an arithmetic number, because the mean of its divisors is an integer number (4391184).

Almost surely, 2^28438076 is an apocalyptic number.

It is an amenable number.

28438076 is a deficient number, since it is larger than the sum of its proper divisors (24256132).

28438076 is a wasteful number, since it uses less digits than its factorization.

28438076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418228 (or 418226 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28438076 is about 5332.7362582449. The cubic root of 28438076 is about 305.2343482439.

The spelling of 28438076 in words is "twenty-eight million, four hundred thirty-eight thousand, seventy-six".