7289028 has 36 divisors (see below), whose sum is σ = 19110000. Its totient is φ = 2429352.

The previous prime is 7289017. The next prime is 7289033. The reversal of 7289028 is 8209827.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7288983 and 7289001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2778 + ... + 4721.

Almost surely, 2^7289028 is an apocalyptic number.

It is an amenable number.

7289028 is an abundant number, since it is smaller than the sum of its proper divisors (11820972).

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

7289028 is a wasteful number, since it uses less digits than its factorization.

7289028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7289028 is about 2699.8199939996. The cubic root of 7289028 is about 193.8905039811.

The spelling of 7289028 in words is "seven million, two hundred eighty-nine thousand, twenty-eight".