24189140 has 12 divisors (see below), whose sum is σ = 50797236. Its totient is φ = 9675648.

The previous prime is 24189133. The next prime is 24189163. The reversal of 24189140 is 4198142.

It can be written as a sum of positive squares in 2 ways, for example, as 11600836 + 12588304 = 3406^2 + 3548^2 .

It is a super-2 number, since 2×24189140² = 1170228987879200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 604709 + ... + 604748.

It is an arithmetic number, because the mean of its divisors is an integer number (4233103).

Almost surely, 2^24189140 is an apocalyptic number.

24189140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24189140 is an abundant number, since it is smaller than the sum of its proper divisors (26608096).

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

24189140 is a wasteful number, since it uses less digits than its factorization.

24189140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209466 (or 1209464 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 24189140 is about 4918.2456221706. The cubic root of 24189140 is about 289.2056740844.

The spelling of 24189140 in words is "twenty-four million, one hundred eighty-nine thousand, one hundred forty".