28465544 has 8 divisors (see below), whose sum is σ = 53372910. Its totient is φ = 14232768.

The previous prime is 28465529. The next prime is 28465561. The reversal of 28465544 is 44556482.

It can be written as a sum of positive squares in only one way, i.e., 28408900 + 56644 = 5330^2 + 238^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28465498 and 28465507.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1779089 + ... + 1779104.

Almost surely, 2^28465544 is an apocalyptic number.

It is an amenable number.

28465544 is a deficient number, since it is larger than the sum of its proper divisors (24907366).

28465544 is a wasteful number, since it uses less digits than its factorization.

28465544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558199 (or 3558195 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 28465544 is about 5335.3110499764. The cubic root of 28465544 is about 305.3325906980.

The spelling of 28465544 in words is "twenty-eight million, four hundred sixty-five thousand, five hundred forty-four".