30642423 has 8 divisors (see below), whose sum is σ = 46693248. Its totient is φ = 17509944.

The previous prime is 30642419. The next prime is 30642431. The reversal of 30642423 is 32424603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30642423 - 2² = 30642419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30642393 and 30642402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729561 + ... + 729602.

It is an arithmetic number, because the mean of its divisors is an integer number (5836656).

Almost surely, 2^30642423 is an apocalyptic number.

30642423 is a deficient number, since it is larger than the sum of its proper divisors (16050825).

30642423 is a wasteful number, since it uses less digits than its factorization.

30642423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459173.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 30642423 is about 5535.5598632839. The cubic root of 30642423 is about 312.9255573932.

The spelling of 30642423 in words is "thirty million, six hundred forty-two thousand, four hundred twenty-three".