28053072 has 30 divisors (see below), whose sum is σ = 78510042. Its totient is φ = 9350976.

The previous prime is 28053049. The next prime is 28053089. The reversal of 28053072 is 27035082.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 553536 = 5244^2 + 744^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97263 + ... + 97550.

Almost surely, 2^28053072 is an apocalyptic number.

It is an amenable number.

28053072 is an abundant number, since it is smaller than the sum of its proper divisors (50456970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28053072 is a wasteful number, since it uses less digits than its factorization.

28053072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194827 (or 194818 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 28053072 is about 5296.5150806922. The cubic root of 28053072 is about 303.8506306827.

The spelling of 28053072 in words is "twenty-eight million, fifty-three thousand, seventy-two".