30043020 has 96 divisors (see below), whose sum is σ = 96864768. Its totient is φ = 6815232.

The previous prime is 30042983. The next prime is 30043021. The reversal of 30043020 is 2034003.

It is a super-3 number, since 3×30043020³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30042987 and 30043005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30043021) 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 31 ways as a sum of consecutive naturals, for example, 97707 + ... + 98013.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^30043020 is an apocalyptic number.

30043020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30043020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48432384).

30043020 is an abundant number, since it is smaller than the sum of its proper divisors (66821748).

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

30043020 is a wasteful number, since it uses less digits than its factorization.

30043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30043020 is about 5481.1513389068. The cubic root of 30043020 is about 310.8717053704.

Adding to 30043020 its reverse (2034003), we get a palindrome (32077023).

The spelling of 30043020 in words is "thirty million, forty-three thousand, twenty".