30126423 has 4 divisors (see below), whose sum is σ = 40168568. Its totient is φ = 20084280.

The previous prime is 30126409. The next prime is 30126449. The reversal of 30126423 is 32462103.

It is a happy number.

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

It is not a de Polignac number, because 30126423 - 2⁵ = 30126391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30126423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30126323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5021068 + ... + 5021073.

It is an arithmetic number, because the mean of its divisors is an integer number (10042142).

Almost surely, 2^30126423 is an apocalyptic number.

30126423 is a deficient number, since it is larger than the sum of its proper divisors (10042145).

30126423 is a wasteful number, since it uses less digits than its factorization.

30126423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042144.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30126423 is about 5488.7542302421. The cubic root of 30126423 is about 311.1591118633.

Adding to 30126423 its reverse (32462103), we get a palindrome (62588526).

The spelling of 30126423 in words is "thirty million, one hundred twenty-six thousand, four hundred twenty-three".