30054420 has 144 divisors (see below), whose sum is σ = 102053952. Its totient is φ = 7096320.

The previous prime is 30054389. The next prime is 30054421. The reversal of 30054420 is 2445003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30054393 and 30054402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30054421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84964 + ... + 85316.

It is an arithmetic number, because the mean of its divisors is an integer number (708708).

Almost surely, 2^30054420 is an apocalyptic number.

30054420 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 30054420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51026976).

30054420 is an abundant number, since it is smaller than the sum of its proper divisors (71999532).

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

30054420 is a wasteful number, since it uses less digits than its factorization.

30054420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30054420 is about 5482.1911677722. The cubic root of 30054420 is about 310.9110210947.

Adding to 30054420 its reverse (2445003), we get a palindrome (32499423).

The spelling of 30054420 in words is "thirty million, fifty-four thousand, four hundred twenty".