28743464 has 16 divisors (see below), whose sum is σ = 57064500. Its totient is φ = 13526272.

The previous prime is 28743401. The next prime is 28743467. The reversal of 28743464 is 46434782.

It can be written as a sum of positive squares in 2 ways, for example, as 23716900 + 5026564 = 4870^2 + 2242^2 .

It is not an unprimeable number, because it can be changed into a prime (28743467) 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, 105539 + ... + 105810.

Almost surely, 2^28743464 is an apocalyptic number.

It is an amenable number.

28743464 is a deficient number, since it is larger than the sum of its proper divisors (28321036).

28743464 is a wasteful number, since it uses less digits than its factorization.

28743464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211372 (or 211368 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 28743464 is about 5361.2931275952. The cubic root of 28743464 is about 306.3230671694.

The spelling of 28743464 in words is "twenty-eight million, seven hundred forty-three thousand, four hundred sixty-four".