24138930 has 32 divisors (see below), whose sum is σ = 60984000. Its totient is φ = 6098112.

The previous prime is 24138913. The next prime is 24138931. The reversal of 24138930 is 3983142.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24138931) 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 15 ways as a sum of consecutive naturals, for example, 20605 + ... + 21744.

It is an arithmetic number, because the mean of its divisors is an integer number (1905750).

Almost surely, 2^24138930 is an apocalyptic number.

24138930 is an abundant number, since it is smaller than the sum of its proper divisors (36845070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24138930 is a wasteful number, since it uses less digits than its factorization.

24138930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42378.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 24138930 is about 4913.1385081229. The cubic root of 24138930 is about 289.0054316656.

The spelling of 24138930 in words is "twenty-four million, one hundred thirty-eight thousand, nine hundred thirty".