30302421 has 8 divisors (see below), whose sum is σ = 41065824. Its totient is φ = 19870320.

The previous prime is 30302411. The next prime is 30302443. The reversal of 30302421 is 12420303.

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

It is not a de Polignac number, because 30302421 - 2¹⁴ = 30286037 is a prime.

It is a super-2 number, since 2×30302421² = 1836473436922482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30302421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302411) 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, 82611 + ... + 82976.

It is an arithmetic number, because the mean of its divisors is an integer number (5133228).

Almost surely, 2^30302421 is an apocalyptic number.

It is an amenable number.

30302421 is a deficient number, since it is larger than the sum of its proper divisors (10763403).

30302421 is a wasteful number, since it uses less digits than its factorization.

30302421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165651.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30302421 is about 5504.7634826575. The cubic root of 30302421 is about 311.7638643085.

Adding to 30302421 its reverse (12420303), we get a palindrome (42722724).

The spelling of 30302421 in words is "thirty million, three hundred two thousand, four hundred twenty-one".