28132476 has 24 divisors (see below), whose sum is σ = 65730000. Its totient is φ = 9364992.

The previous prime is 28132471. The next prime is 28132487. The reversal of 28132476 is 67423182.

28132476 = 1764² + 1765² + ... + 1772².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28132471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14050 + ... + 15926.

It is an arithmetic number, because the mean of its divisors is an integer number (2738750).

Almost surely, 2^28132476 is an apocalyptic number.

It is an amenable number.

28132476 is an abundant number, since it is smaller than the sum of its proper divisors (37597524).

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

28132476 is a wasteful number, since it uses less digits than its factorization.

28132476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133 (or 3131 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 28132476 is about 5304.0056561056. The cubic root of 28132476 is about 304.1370428980.

The spelling of 28132476 in words is "twenty-eight million, one hundred thirty-two thousand, four hundred seventy-six".