30228629 has 4 divisors (see below), whose sum is σ = 30395820. Its totient is φ = 30061440.

The previous prime is 30228607. The next prime is 30228637. The reversal of 30228629 is 92682203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92682203 = 23 ⋅4029661.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 29866225 = 602^2 + 5465^2 .

It is a cyclic number.

It is not a de Polignac number, because 30228629 - 2²⁴ = 13451413 is a prime.

It is a super-2 number, since 2×30228629² = 1827540022439282, 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 = 30228595 and 30228604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30228659) 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, 83324 + ... + 83685.

It is an arithmetic number, because the mean of its divisors is an integer number (7598955).

Almost surely, 2^30228629 is an apocalyptic number.

It is an amenable number.

30228629 is a deficient number, since it is larger than the sum of its proper divisors (167191).

30228629 is a wasteful number, since it uses less digits than its factorization.

30228629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167190.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30228629 is about 5498.0568385567. The cubic root of 30228629 is about 311.5105910498.

The spelling of 30228629 in words is "thirty million, two hundred twenty-eight thousand, six hundred twenty-nine".