30419621 has 4 divisors (see below), whose sum is σ = 30437292. Its totient is φ = 30401952.

The previous prime is 30419591. The next prime is 30419629. The reversal of 30419621 is 12691403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24611521 + 5808100 = 4961^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 30419621 - 2¹⁴ = 30403237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30419629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5936 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (7609323).

Almost surely, 2^30419621 is an apocalyptic number.

It is an amenable number.

30419621 is a deficient number, since it is larger than the sum of its proper divisors (17671).

30419621 is a wasteful number, since it uses less digits than its factorization.

30419621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30419621 is about 5515.3985350109. The cubic root of 30419621 is about 312.1652812908.

The spelling of 30419621 in words is "thirty million, four hundred nineteen thousand, six hundred twenty-one".