40120632443 has 4 divisors (see below), whose sum is σ = 40132474320. Its totient is φ = 40108790568.

The previous prime is 40120632437. The next prime is 40120632449. The reversal of 40120632443 is 34423602104.

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

It is an interprime number because it is at equal distance from previous prime (40120632437) and next prime (40120632449).

It is a cyclic number.

It is not a de Polignac number, because 40120632443 - 2²⁴ = 40103855227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40120632449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5915855 + ... + 5922632.

It is an arithmetic number, because the mean of its divisors is an integer number (10033118580).

Almost surely, 2^40120632443 is an apocalyptic number.

40120632443 is a deficient number, since it is larger than the sum of its proper divisors (11841877).

40120632443 is a wasteful number, since it uses less digits than its factorization.

40120632443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841876.

The product of its (nonzero) digits is 13824, while the sum is 29.

The spelling of 40120632443 in words is "forty billion, one hundred twenty million, six hundred thirty-two thousand, four hundred forty-three".