30849845 has 16 divisors (see below), whose sum is σ = 40182912. Its totient is φ = 22601280.

The previous prime is 30849829. The next prime is 30849851. The reversal of 30849845 is 54894803.

It is not a de Polignac number, because 30849845 - 2⁴ = 30849829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6704 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (2511432).

Almost surely, 2^30849845 is an apocalyptic number.

It is an amenable number.

30849845 is a deficient number, since it is larger than the sum of its proper divisors (9333067).

30849845 is a wasteful number, since it uses less digits than its factorization.

30849845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 30849845 is about 5554.2636775724. The cubic root of 30849845 is about 313.6300462597.

The spelling of 30849845 in words is "thirty million, eight hundred forty-nine thousand, eight hundred forty-five".