30283040 has 48 divisors (see below), whose sum is σ = 73084032. Its totient is φ = 11852544.

The previous prime is 30283039. The next prime is 30283049. The reversal of 30283040 is 4038203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30283049) 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, 5507 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (1522584).

Almost surely, 2^30283040 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 30283040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36542016).

30283040 is an abundant number, since it is smaller than the sum of its proper divisors (42800992).

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

30283040 is a wasteful number, since it uses less digits than its factorization.

30283040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4081 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30283040 is about 5503.0028166447. The cubic root of 30283040 is about 311.6973835467.

The spelling of 30283040 in words is "thirty million, two hundred eighty-three thousand, forty".