30836845 has 8 divisors (see below), whose sum is σ = 39850776. Its totient is φ = 22771776.

The previous prime is 30836843. The next prime is 30836887. The reversal of 30836845 is 54863803.

It can be written as a sum of positive squares in 4 ways, for example, as 509796 + 30327049 = 714^2 + 5507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30836845 - 2¹ = 30836843 is a prime.

It is a super-2 number, since 2×30836845² = 1901822019108050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30836843) 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 7 ways as a sum of consecutive naturals, for example, 237142 + ... + 237271.

It is an arithmetic number, because the mean of its divisors is an integer number (4981347).

Almost surely, 2^30836845 is an apocalyptic number.

It is an amenable number.

30836845 is a deficient number, since it is larger than the sum of its proper divisors (9013931).

30836845 is a wasteful number, since it uses less digits than its factorization.

30836845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474431.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 30836845 is about 5553.0932821266. The cubic root of 30836845 is about 313.5859859256.

The spelling of 30836845 in words is "thirty million, eight hundred thirty-six thousand, eight hundred forty-five".