30875449 has 12 divisors (see below), whose sum is σ = 34263460. Its totient is φ = 27799200.

The previous prime is 30875443. The next prime is 30875497. The reversal of 30875449 is 94457803.

It can be written as a sum of positive squares in 2 ways, for example, as 20839225 + 10036224 = 4565^2 + 3168^2 .

It is not a de Polignac number, because 30875449 - 2³ = 30875441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30875441) 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, 12019 + ... + 14359.

Almost surely, 2^30875449 is an apocalyptic number.

It is an amenable number.

30875449 is a deficient number, since it is larger than the sum of its proper divisors (3388011).

30875449 is a wasteful number, since it uses less digits than its factorization.

30875449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 30875449 is about 5556.5680955064. The cubic root of 30875449 is about 313.7167885990.

It can be divided in two parts, 308754 and 49, that added together give a palindrome (308803).

The spelling of 30875449 in words is "thirty million, eight hundred seventy-five thousand, four hundred forty-nine".