28369030 has 16 divisors (see below), whose sum is σ = 52712064. Its totient is φ = 10981440.

The previous prime is 28369013. The next prime is 28369031. The reversal of 28369030 is 3096382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 28368983 and 28369001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28369031) 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, 45447 + ... + 46066.

It is an arithmetic number, because the mean of its divisors is an integer number (3294504).

Almost surely, 2^28369030 is an apocalyptic number.

28369030 is a deficient number, since it is larger than the sum of its proper divisors (24343034).

28369030 is a wasteful number, since it uses less digits than its factorization.

28369030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91551.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 28369030 is about 5326.2585367216. The cubic root of 28369030 is about 304.9871176141.

The spelling of 28369030 in words is "twenty-eight million, three hundred sixty-nine thousand, thirty".