28146392 has 16 divisors (see below), whose sum is σ = 53771040. Its totient is φ = 13807456.

The previous prime is 28146389. The next prime is 28146397. The reversal of 28146392 is 29364182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28146397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32768 + ... + 33615.

It is an arithmetic number, because the mean of its divisors is an integer number (3360690).

Almost surely, 2^28146392 is an apocalyptic number.

It is an amenable number.

28146392 is a deficient number, since it is larger than the sum of its proper divisors (25624648).

28146392 is a wasteful number, since it uses less digits than its factorization.

28146392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66442 (or 66438 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 28146392 is about 5305.3173326390. The cubic root of 28146392 is about 304.1871827366.

The spelling of 28146392 in words is "twenty-eight million, one hundred forty-six thousand, three hundred ninety-two".