28248464 has 20 divisors (see below), whose sum is σ = 56211804. Its totient is φ = 13742208.

The previous prime is 28248461. The next prime is 28248499. The reversal of 28248464 is 46484282.

It can be written as a sum of positive squares in 2 ways, for example, as 17305600 + 10942864 = 4160^2 + 3308^2 .

It is a hoax number, since the sum of its digits (38) 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 (28248461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23267 + ... + 24450.

Almost surely, 2^28248464 is an apocalyptic number.

It is an amenable number.

28248464 is a deficient number, since it is larger than the sum of its proper divisors (27963340).

28248464 is a wasteful number, since it uses less digits than its factorization.

28248464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47762 (or 47756 counting only the distinct ones).

The product of its digits is 98304, while the sum is 38.

The square root of 28248464 is about 5314.9284096778. The cubic root of 28248464 is about 304.5544475334.

The spelling of 28248464 in words is "twenty-eight million, two hundred forty-eight thousand, four hundred sixty-four".