40023033443 has 4 divisors (see below), whose sum is σ = 40035618528. Its totient is φ = 40010448360.

The previous prime is 40023033403. The next prime is 40023033451. The reversal of 40023033443 is 34433032004.

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

It is a cyclic number.

It is not a de Polignac number, because 40023033443 - 2⁸ = 40023033187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023033403) 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, 6287771 + ... + 6294132.

It is an arithmetic number, because the mean of its divisors is an integer number (10008904632).

Almost surely, 2^40023033443 is an apocalyptic number.

40023033443 is a deficient number, since it is larger than the sum of its proper divisors (12585085).

40023033443 is a wasteful number, since it uses less digits than its factorization.

40023033443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585084.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 40023033443 its reverse (34433032004), we get a palindrome (74456065447).

The spelling of 40023033443 in words is "forty billion, twenty-three million, thirty-three thousand, four hundred forty-three".