30132421 has 16 divisors (see below), whose sum is σ = 34603200. Its totient is φ = 25984000.

The previous prime is 30132409. The next prime is 30132451. The reversal of 30132421 is 12423103.

It is a happy number.

It is not a de Polignac number, because 30132421 - 2¹³ = 30124229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30132395 and 30132404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30132451) 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 15 ways as a sum of consecutive naturals, for example, 18021 + ... + 19621.

It is an arithmetic number, because the mean of its divisors is an integer number (2162700).

Almost surely, 2^30132421 is an apocalyptic number.

It is an amenable number.

30132421 is a deficient number, since it is larger than the sum of its proper divisors (4470779).

30132421 is a wasteful number, since it uses less digits than its factorization.

30132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30132421 is about 5489.3005929717. The cubic root of 30132421 is about 311.1797604980.

Adding to 30132421 its reverse (12423103), we get a palindrome (42555524).

The spelling of 30132421 in words is "thirty million, one hundred thirty-two thousand, four hundred twenty-one".