28038064 has 40 divisors (see below), whose sum is σ = 56371392. Its totient is φ = 13500480.

The previous prime is 28038029. The next prime is 28038067. The reversal of 28038064 is 46083082.

It is a happy number.

It is a super-2 number, since 2×28038064² = 1572266065736192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28038067) 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, 56859 + ... + 57349.

Almost surely, 2^28038064 is an apocalyptic number.

It is an amenable number.

28038064 is an abundant number, since it is smaller than the sum of its proper divisors (28333328).

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

28038064 is a wasteful number, since it uses less digits than its factorization.

28038064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28038064 is about 5295.0981105169. The cubic root of 28038064 is about 303.7964357420.

The spelling of 28038064 in words is "twenty-eight million, thirty-eight thousand, sixty-four".