30549429 has 6 divisors (see below), whose sum is σ = 44126966. Its totient is φ = 20366280.

The previous prime is 30549427. The next prime is 30549443. The reversal of 30549429 is 92494503.

It can be written as a sum of positive squares in only one way, i.e., 28068804 + 2480625 = 5298^2 + 1575^2 .

It is not a de Polignac number, because 30549429 - 2¹ = 30549427 is a prime.

It is a super-2 number, since 2×30549429² = 1866535224452082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30549393 and 30549402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30549427) 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 5 ways as a sum of consecutive naturals, for example, 1697182 + ... + 1697199.

Almost surely, 2^30549429 is an apocalyptic number.

It is an amenable number.

30549429 is a deficient number, since it is larger than the sum of its proper divisors (13577537).

30549429 is a wasteful number, since it uses less digits than its factorization.

30549429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394387 (or 3394384 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 30549429 is about 5527.1537883435. The cubic root of 30549429 is about 312.6086798528.

The spelling of 30549429 in words is "thirty million, five hundred forty-nine thousand, four hundred twenty-nine".