28453448 has 8 divisors (see below), whose sum is σ = 53350230. Its totient is φ = 14226720.

The previous prime is 28453433. The next prime is 28453459. The reversal of 28453448 is 84435482.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 12945604 = 3938^2 + 3598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778333 + ... + 1778348.

Almost surely, 2^28453448 is an apocalyptic number.

It is an amenable number.

28453448 is a deficient number, since it is larger than the sum of its proper divisors (24896782).

28453448 is a wasteful number, since it uses less digits than its factorization.

28453448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556687 (or 3556683 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 28453448 is about 5334.1773498825. The cubic root of 28453448 is about 305.2893357570.

The spelling of 28453448 in words is "twenty-eight million, four hundred fifty-three thousand, four hundred forty-eight".