28535450 has 24 divisors (see below), whose sum is σ = 53363772. Its totient is φ = 11352320.

The previous prime is 28535431. The next prime is 28535453. The reversal of 28535450 is 5453582.

It can be written as a sum of positive squares in 6 ways, for example, as 13082689 + 15452761 = 3617^2 + 3931^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28535453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8402 + ... + 11298.

Almost surely, 2^28535450 is an apocalyptic number.

28535450 is a deficient number, since it is larger than the sum of its proper divisors (24828322).

28535450 is a wasteful number, since it uses less digits than its factorization.

28535450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 28535450 is about 5341.8582908947. The cubic root of 28535450 is about 305.5823327620.

The spelling of 28535450 in words is "twenty-eight million, five hundred thirty-five thousand, four hundred fifty".