28049235 has 32 divisors (see below), whose sum is σ = 49170240. Its totient is φ = 13590528.

The previous prime is 28049221. The next prime is 28049257. The reversal of 28049235 is 53294082.

It is a happy number.

It is not a de Polignac number, because 28049235 - 2⁷ = 28049107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28049196 and 28049205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5499 + ... + 9291.

It is an arithmetic number, because the mean of its divisors is an integer number (1536570).

Almost surely, 2^28049235 is an apocalyptic number.

28049235 is a deficient number, since it is larger than the sum of its proper divisors (21121005).

28049235 is a wasteful number, since it uses less digits than its factorization.

28049235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28049235 is about 5296.1528490028. The cubic root of 28049235 is about 303.8367768461.

The spelling of 28049235 in words is "twenty-eight million, forty-nine thousand, two hundred thirty-five".