28384892 has 24 divisors (see below), whose sum is σ = 50948352. Its totient is φ = 13832000.

The previous prime is 28384861. The next prime is 28384897. The reversal of 28384892 is 29848382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28384897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40142 + ... + 40842.

It is an arithmetic number, because the mean of its divisors is an integer number (2122848).

Almost surely, 2^28384892 is an apocalyptic number.

It is an amenable number.

28384892 is a deficient number, since it is larger than the sum of its proper divisors (22563460).

28384892 is a wasteful number, since it uses less digits than its factorization.

28384892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 947 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 28384892 is about 5327.7473663829. The cubic root of 28384892 is about 305.0439495925.

The spelling of 28384892 in words is "twenty-eight million, three hundred eighty-four thousand, eight hundred ninety-two".