30775449 has 16 divisors (see below), whose sum is σ = 42947712. Its totient is φ = 19565568.

The previous prime is 30775397. The next prime is 30775463. The reversal of 30775449 is 94457703.

It is not a de Polignac number, because 30775449 - 2¹³ = 30767257 is a prime.

It is a super-3 number, since 3×30775449³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (30775469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39427 + ... + 40199.

It is an arithmetic number, because the mean of its divisors is an integer number (2684232).

Almost surely, 2^30775449 is an apocalyptic number.

It is an amenable number.

30775449 is a deficient number, since it is larger than the sum of its proper divisors (12172263).

30775449 is a wasteful number, since it uses less digits than its factorization.

30775449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 30775449 is about 5547.5624376838. The cubic root of 30775449 is about 313.3777316242.

The spelling of 30775449 in words is "thirty million, seven hundred seventy-five thousand, four hundred forty-nine".