2442400238 has 4 divisors (see below), whose sum is σ = 3663600360. Its totient is φ = 1221200118.

The previous prime is 2442400231. The next prime is 2442400249. The reversal of 2442400238 is 8320042442.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2442400238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442400231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610600058 + ... + 610600061.

It is an arithmetic number, because the mean of its divisors is an integer number (915900090).

Almost surely, 2^2442400238 is an apocalyptic number.

2442400238 is a deficient number, since it is larger than the sum of its proper divisors (1221200122).

2442400238 is a wasteful number, since it uses less digits than its factorization.

2442400238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221200121.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 2442400238 is about 49420.6458678961. The cubic root of 2442400238 is about 1346.7043962923.

The spelling of 2442400238 in words is "two billion, four hundred forty-two million, four hundred thousand, two hundred thirty-eight".