28230476 has 12 divisors (see below), whose sum is σ = 51551472. Its totient is φ = 13501488.

The previous prime is 28230473. The next prime is 28230481. The reversal of 28230476 is 67403282.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28230473) by changing a digit.

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, 153335 + ... + 153518.

It is an arithmetic number, because the mean of its divisors is an integer number (4295956).

Almost surely, 2^28230476 is an apocalyptic number.

It is an amenable number.

28230476 is a deficient number, since it is larger than the sum of its proper divisors (23320996).

28230476 is a wasteful number, since it uses less digits than its factorization.

28230476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306880 (or 306878 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28230476 is about 5313.2359254978. The cubic root of 28230476 is about 304.4897892847.

The spelling of 28230476 in words is "twenty-eight million, two hundred thirty thousand, four hundred seventy-six".