28916492 has 12 divisors (see below), whose sum is σ = 55204296. Its totient is φ = 13143840.

The previous prime is 28916483. The next prime is 28916519. The reversal of 28916492 is 29461982.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 328553 + ... + 328640.

It is an arithmetic number, because the mean of its divisors is an integer number (4600358).

Almost surely, 2^28916492 is an apocalyptic number.

28916492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28916492 is a deficient number, since it is larger than the sum of its proper divisors (26287804).

28916492 is a wasteful number, since it uses less digits than its factorization.

28916492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657208 (or 657206 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 28916492 is about 5377.4056941986. The cubic root of 28916492 is about 306.9364990130.

Subtracting 28916492 from its reverse (29461982), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 28916492 in words is "twenty-eight million, nine hundred sixteen thousand, four hundred ninety-two".