28176630 has 32 divisors (see below), whose sum is σ = 68774400. Its totient is φ = 7385952.

The previous prime is 28176619. The next prime is 28176637. The reversal of 28176630 is 3667182.

It is a junction number, because it is equal to n+sod(n) for n = 28176591 and 28176600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28176637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6190 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (2149200).

Almost surely, 2^28176630 is an apocalyptic number.

28176630 is an abundant number, since it is smaller than the sum of its proper divisors (40597770).

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

28176630 is a wasteful number, since it uses less digits than its factorization.

28176630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28176630 is about 5308.1663500685. The cubic root of 28176630 is about 304.2960743742.

The spelling of 28176630 in words is "twenty-eight million, one hundred seventy-six thousand, six hundred thirty".