30454221 has 8 divisors (see below), whose sum is σ = 46406464. Its totient is φ = 17402400.

The previous prime is 30454201. The next prime is 30454223. The reversal of 30454221 is 12245403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30454221 - 2¹³ = 30446029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1450201 = 30454221 / (3 + 0 + 4 + 5 + 4 + 2 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454223) 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, 725080 + ... + 725121.

It is an arithmetic number, because the mean of its divisors is an integer number (5800808).

Almost surely, 2^30454221 is an apocalyptic number.

It is an amenable number.

30454221 is a deficient number, since it is larger than the sum of its proper divisors (15952243).

30454221 is a wasteful number, since it uses less digits than its factorization.

30454221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450211.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30454221 is about 5518.5343162836. The cubic root of 30454221 is about 312.2835911830.

Adding to 30454221 its reverse (12245403), we get a palindrome (42699624).

The spelling of 30454221 in words is "thirty million, four hundred fifty-four thousand, two hundred twenty-one".