28454344 has 8 divisors (see below), whose sum is σ = 53351910. Its totient is φ = 14227168.

The previous prime is 28454281. The next prime is 28454351. The reversal of 28454344 is 44345482.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 2137444 = 5130^2 + 1462^2 .

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, 1778389 + ... + 1778404.

Almost surely, 2^28454344 is an apocalyptic number.

It is an amenable number.

28454344 is a deficient number, since it is larger than the sum of its proper divisors (24897566).

28454344 is a wasteful number, since it uses less digits than its factorization.

28454344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556799 (or 3556795 counting only the distinct ones).

The product of its digits is 61440, while the sum is 34.

The square root of 28454344 is about 5334.2613359302. The cubic root of 28454344 is about 305.2925402471.

The spelling of 28454344 in words is "twenty-eight million, four hundred fifty-four thousand, three hundred forty-four".