28132078 has 12 divisors (see below), whose sum is σ = 45694368. Its totient is φ = 12983880.

The previous prime is 28132067. The next prime is 28132121. The reversal of 28132078 is 87023182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41278 + ... + 41953.

It is an arithmetic number, because the mean of its divisors is an integer number (3807864).

Almost surely, 2^28132078 is an apocalyptic number.

28132078 is a deficient number, since it is larger than the sum of its proper divisors (17562290).

28132078 is a wasteful number, since it uses less digits than its factorization.

28132078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83259 (or 83246 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 28132078 is about 5303.9681371592. The cubic root of 28132078 is about 304.1356086468.

The spelling of 28132078 in words is "twenty-eight million, one hundred thirty-two thousand, seventy-eight".