30003420 has 24 divisors (see below), whose sum is σ = 84009744. Its totient is φ = 8000896.

The previous prime is 30003401. The next prime is 30003427. The reversal of 30003420 is 2430003.

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 = 30003396 and 30003405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003427) 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 7 ways as a sum of consecutive naturals, for example, 249969 + ... + 250088.

It is an arithmetic number, because the mean of its divisors is an integer number (3500406).

Almost surely, 2^30003420 is an apocalyptic number.

30003420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30003420 is an abundant number, since it is smaller than the sum of its proper divisors (54006324).

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

30003420 is a wasteful number, since it uses less digits than its factorization.

30003420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500069 (or 500067 counting only the distinct ones).

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

The square root of 30003420 is about 5477.5377680122. The cubic root of 30003420 is about 310.7350576303.

Adding to 30003420 its reverse (2430003), we get a palindrome (32433423).

The spelling of 30003420 in words is "thirty million, three thousand, four hundred twenty".