30629243 has 4 divisors (see below), whose sum is σ = 30745968. Its totient is φ = 30512520.

The previous prime is 30629239. The next prime is 30629299. The reversal of 30629243 is 34292603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34292603 = 31 ⋅1106213.

It is a cyclic number.

It is not a de Polignac number, because 30629243 - 2² = 30629239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30629743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57968 + ... + 58493.

It is an arithmetic number, because the mean of its divisors is an integer number (7686492).

Almost surely, 2^30629243 is an apocalyptic number.

30629243 is a deficient number, since it is larger than the sum of its proper divisors (116725).

30629243 is a wasteful number, since it uses less digits than its factorization.

30629243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116724.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 30629243 is about 5534.3692504205. The cubic root of 30629243 is about 312.8806855030.

The spelling of 30629243 in words is "thirty million, six hundred twenty-nine thousand, two hundred forty-three".