40023263594 has 4 divisors (see below), whose sum is σ = 60034895394. Its totient is φ = 20011631796.

The previous prime is 40023263593. The next prime is 40023263597. The reversal of 40023263594 is 49536232004.

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

It can be written as a sum of positive squares in only one way, i.e., 34127020225 + 5896243369 = 184735^2 + 76787^2 .

It is not an unprimeable number, because it can be changed into a prime (40023263593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005815897 + ... + 10005815900.

Almost surely, 2^40023263594 is an apocalyptic number.

40023263594 is a deficient number, since it is larger than the sum of its proper divisors (20011631800).

40023263594 is a wasteful number, since it uses less digits than its factorization.

40023263594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011631799.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 40023263594 its reverse (49536232004), we get a palindrome (89559495598).

The spelling of 40023263594 in words is "forty billion, twenty-three million, two hundred sixty-three thousand, five hundred ninety-four".