28338485 has 32 divisors (see below), whose sum is σ = 40565760. Its totient is φ = 18600192.

The previous prime is 28338463. The next prime is 28338491. The reversal of 28338485 is 58483382.

28338485 = T₁ + T₂ + ... + T₅₅₃.

28338485 is a nontrivial binomial coefficient, being equal to C(555, 3).

It is a cyclic number.

It is not a de Polignac number, because 28338485 - 2⁸ = 28338229 is a prime.

It is a super-3 number, since 3×28338485³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is the 553-rd tetrahedral number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102167 + ... + 102443.

It is an arithmetic number, because the mean of its divisors is an integer number (1267680).

Almost surely, 2^28338485 is an apocalyptic number.

It is an amenable number.

28338485 is a deficient number, since it is larger than the sum of its proper divisors (12227275).

28338485 is a wasteful number, since it uses less digits than its factorization.

28338485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its digits is 184320, while the sum is 41.

The square root of 28338485 is about 5323.3903670499. The cubic root of 28338485 is about 304.8776181944.

The spelling of 28338485 in words is "twenty-eight million, three hundred thirty-eight thousand, four hundred eighty-five".