30849384 has 64 divisors (see below), whose sum is σ = 80015040. Its totient is φ = 9904640.

The previous prime is 30849367. The next prime is 30849391. The reversal of 30849384 is 48394803.

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, 105142 + ... + 105434.

It is an arithmetic number, because the mean of its divisors is an integer number (1250235).

Almost surely, 2^30849384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30849384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40007520).

30849384 is an abundant number, since it is smaller than the sum of its proper divisors (49165656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30849384 is a wasteful number, since it uses less digits than its factorization.

30849384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 30849384 is about 5554.2221777671. Note that the first 3 decimals coincide. The cubic root of 30849384 is about 313.6284840242.

The spelling of 30849384 in words is "thirty million, eight hundred forty-nine thousand, three hundred eighty-four".