30030420 has 96 divisors (see below), whose sum is σ = 97026048. Its totient is φ = 6797952.

The previous prime is 30030419. The next prime is 30030437. The reversal of 30030420 is 2403003.

It is a super-2 number, since 2×30030420² = 1803652250752800, which contains 22 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 = 30030396 and 30030405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53059 + ... + 53621.

It is an arithmetic number, because the mean of its divisors is an integer number (1010688).

Almost surely, 2^30030420 is an apocalyptic number.

30030420 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 30030420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48513024).

30030420 is an abundant number, since it is smaller than the sum of its proper divisors (66995628).

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

30030420 is a wasteful number, since it uses less digits than its factorization.

30030420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 707 counting only the distinct ones).

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

The square root of 30030420 is about 5480.0018248172. The cubic root of 30030420 is about 310.8282395758.

Adding to 30030420 its reverse (2403003), we get a palindrome (32433423).

The spelling of 30030420 in words is "thirty million, thirty thousand, four hundred twenty".