30875049 has 12 divisors (see below), whose sum is σ = 44824000. Its totient is φ = 20478744.

The previous prime is 30875029. The next prime is 30875051. The reversal of 30875049 is 94057803.

It is not a de Polignac number, because 30875049 - 2⁹ = 30874537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30875029) 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, 6829 + ... + 10410.

Almost surely, 2^30875049 is an apocalyptic number.

It is an amenable number.

30875049 is a deficient number, since it is larger than the sum of its proper divisors (13948951).

30875049 is a wasteful number, since it uses less digits than its factorization.

30875049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444 (or 17441 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 30875049 is about 5556.5321019499. The cubic root of 30875049 is about 313.7154338305.

It can be divided in two parts, 308 and 75049, that added together give a palindrome (75357).

The spelling of 30875049 in words is "thirty million, eight hundred seventy-five thousand, forty-nine".