28595940 has 24 divisors (see below), whose sum is σ = 80068800. Its totient is φ = 7625568.

The previous prime is 28595933. The next prime is 28595951. The reversal of 28595940 is 4959582.

It is a junction number, because it is equal to n+sod(n) for n = 28595892 and 28595901.

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 7 ways as a sum of consecutive naturals, for example, 238240 + ... + 238359.

It is an arithmetic number, because the mean of its divisors is an integer number (3336200).

Almost surely, 2^28595940 is an apocalyptic number.

28595940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28595940 is an abundant number, since it is smaller than the sum of its proper divisors (51472860).

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

28595940 is a wasteful number, since it uses less digits than its factorization.

28595940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476611 (or 476609 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 28595940 is about 5347.5171808981. The cubic root of 28595940 is about 305.7981068170.

The spelling of 28595940 in words is "twenty-eight million, five hundred ninety-five thousand, nine hundred forty".