28945782 has 32 divisors (see below), whose sum is σ = 64504800. Its totient is φ = 9621504.

The previous prime is 28945757. The next prime is 28945789. The reversal of 28945782 is 28754982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28945789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30694 + ... + 31622.

It is an arithmetic number, because the mean of its divisors is an integer number (2015775).

Almost surely, 2^28945782 is an apocalyptic number.

28945782 is an abundant number, since it is smaller than the sum of its proper divisors (35559018).

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

28945782 is a wasteful number, since it uses less digits than its factorization.

28945782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1511 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28945782 is about 5380.1284371286. The cubic root of 28945782 is about 307.0400977521.

The spelling of 28945782 in words is "twenty-eight million, nine hundred forty-five thousand, seven hundred eighty-two".