24138030 has 64 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 5470464.

The previous prime is 24138029. The next prime is 24138031. The reversal of 24138030 is 3083142.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (24138029) and next prime (24138031).

It is a super-3 number, since 3×24138030³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 24137988 and 24138006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24138031) 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 31 ways as a sum of consecutive naturals, for example, 28351 + ... + 29189.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^24138030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24138030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33384960).

24138030 is an abundant number, since it is smaller than the sum of its proper divisors (42631890).

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

24138030 is a wasteful number, since it uses less digits than its factorization.

24138030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 24138030 is about 4913.0469161204. The cubic root of 24138030 is about 289.0018398449.

The spelling of 24138030 in words is "twenty-four million, one hundred thirty-eight thousand, thirty".