40845340238 has 4 divisors (see below), whose sum is σ = 61268010360. Its totient is φ = 20422670118.

The previous prime is 40845340229. The next prime is 40845340243. The reversal of 40845340238 is 83204354804.

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

It is a junction number, because it is equal to n+sod(n) for n = 40845340195 and 40845340204.

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, 10211335058 + ... + 10211335061.

It is an arithmetic number, because the mean of its divisors is an integer number (15317002590).

Almost surely, 2^40845340238 is an apocalyptic number.

40845340238 is a deficient number, since it is larger than the sum of its proper divisors (20422670122).

40845340238 is a wasteful number, since it uses less digits than its factorization.

40845340238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422670121.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 40845340238 in words is "forty billion, eight hundred forty-five million, three hundred forty thousand, two hundred thirty-eight".