30849770 has 16 divisors (see below), whose sum is σ = 63462528. Its totient is φ = 10577040.

The previous prime is 30849769. The next prime is 30849779. The reversal of 30849770 is 7794803.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30849779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220286 + ... + 220425.

It is an arithmetic number, because the mean of its divisors is an integer number (3966408).

Almost surely, 2^30849770 is an apocalyptic number.

30849770 is an abundant number, since it is smaller than the sum of its proper divisors (32612758).

30849770 is a wasteful number, since it uses less digits than its factorization.

30849770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440725.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 30849770 is about 5554.2569259983. The cubic root of 30849770 is about 313.6297921010.

The spelling of 30849770 in words is "thirty million, eight hundred forty-nine thousand, seven hundred seventy".