30421446 has 32 divisors (see below), whose sum is σ = 67132800. Its totient is φ = 9113280.

The previous prime is 30421427. The next prime is 30421459. The reversal of 30421446 is 64412403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3285 + ... + 8463.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^30421446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33566400).

30421446 is an abundant number, since it is smaller than the sum of its proper divisors (36711354).

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

30421446 is a wasteful number, since it uses less digits than its factorization.

30421446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30421446 is about 5515.5639784160. The cubic root of 30421446 is about 312.1715238653.

Adding to 30421446 its reverse (64412403), we get a palindrome (94833849).

The spelling of 30421446 in words is "thirty million, four hundred twenty-one thousand, four hundred forty-six".