28176132 has 12 divisors (see below), whose sum is σ = 65744336. Its totient is φ = 9392040.

The previous prime is 28176131. The next prime is 28176133. The reversal of 28176132 is 23167182.

It is an interprime number because it is at equal distance from previous prime (28176131) and next prime (28176133).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 28176132.

It is not an unprimeable number, because it can be changed into a prime (28176131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173994 + ... + 1174017.

Almost surely, 2^28176132 is an apocalyptic number.

It is an amenable number.

28176132 is an abundant number, since it is smaller than the sum of its proper divisors (37568204).

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

28176132 is a wasteful number, since it uses less digits than its factorization.

28176132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348018 (or 2348016 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 28176132 is about 5308.1194410073. The cubic root of 28176132 is about 304.2942816315.

The spelling of 28176132 in words is "twenty-eight million, one hundred seventy-six thousand, one hundred thirty-two".