28571344 has 10 divisors (see below), whose sum is σ = 55357010. Its totient is φ = 14285664.

The previous prime is 28571329. The next prime is 28571353. The reversal of 28571344 is 44317582.

It can be written as a sum of positive squares in only one way, i.e., 27962944 + 608400 = 5288^2 + 780^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892839 + ... + 892870.

It is an arithmetic number, because the mean of its divisors is an integer number (5535701).

Almost surely, 2^28571344 is an apocalyptic number.

It is an amenable number.

28571344 is a deficient number, since it is larger than the sum of its proper divisors (26785666).

28571344 is a wasteful number, since it uses less digits than its factorization.

28571344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785717 (or 1785711 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 28571344 is about 5345.2169273099. The cubic root of 28571344 is about 305.7104070980.

The spelling of 28571344 in words is "twenty-eight million, five hundred seventy-one thousand, three hundred forty-four".