24209740238 has 4 divisors (see below), whose sum is σ = 36314610360. Its totient is φ = 12104870118.

The previous prime is 24209740213. The next prime is 24209740249. The reversal of 24209740238 is 83204790242.

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

It is a super-2 number, since 2×24209740238² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 24209740195 and 24209740204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052435058 + ... + 6052435061.

It is an arithmetic number, because the mean of its divisors is an integer number (9078652590).

Almost surely, 2^24209740238 is an apocalyptic number.

24209740238 is a deficient number, since it is larger than the sum of its proper divisors (12104870122).

24209740238 is a wasteful number, since it uses less digits than its factorization.

24209740238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12104870121.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 24209740238 in words is "twenty-four billion, two hundred nine million, seven hundred forty thousand, two hundred thirty-eight".