40436943 has 4 divisors (see below), whose sum is σ = 53915928. Its totient is φ = 26957960.

The previous prime is 40436923. The next prime is 40436953. The reversal of 40436943 is 34963404.

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 40436943 - 2¹⁰ = 40435919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40436923) 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, 6739488 + ... + 6739493.

It is an arithmetic number, because the mean of its divisors is an integer number (13478982).

Almost surely, 2^40436943 is an apocalyptic number.

40436943 is a deficient number, since it is larger than the sum of its proper divisors (13478985).

40436943 is a wasteful number, since it uses less digits than its factorization.

40436943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13478984.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 40436943 is about 6359.0048749785. The cubic root of 40436943 is about 343.2359524200.

The spelling of 40436943 in words is "forty million, four hundred thirty-six thousand, nine hundred forty-three".