40223077138 has 8 divisors (see below), whose sum is σ = 60335491788. Its totient is φ = 20111246544.

The previous prime is 40223077133. The next prime is 40223077177. The reversal of 40223077138 is 83177032204.

It can be written as a sum of positive squares in 2 ways, for example, as 40185414369 + 37662769 = 200463^2 + 6137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40223077097 and 40223077106.

It is not an unprimeable number, because it can be changed into a prime (40223077133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132120 + ... + 312892.

Almost surely, 2^40223077138 is an apocalyptic number.

40223077138 is a deficient number, since it is larger than the sum of its proper divisors (20112414650).

40223077138 is a wasteful number, since it uses less digits than its factorization.

40223077138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292028.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 40223077138 in words is "forty billion, two hundred twenty-three million, seventy-seven thousand, one hundred thirty-eight".