40432843 has 4 divisors (see below), whose sum is σ = 44108568. Its totient is φ = 36757120.

The previous prime is 40432841. The next prime is 40432853. The reversal of 40432843 is 34823404.

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 40432843 - 2¹ = 40432841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40432841) 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, 1837846 + ... + 1837867.

It is an arithmetic number, because the mean of its divisors is an integer number (11027142).

Almost surely, 2^40432843 is an apocalyptic number.

40432843 is a deficient number, since it is larger than the sum of its proper divisors (3675725).

40432843 is a wasteful number, since it uses less digits than its factorization.

40432843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675724.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 40432843 is about 6358.6824893212. The cubic root of 40432843 is about 343.2243515186.

It can be divided in two parts, 4043 and 2843, that added together give a palindrome (6886).

The spelling of 40432843 in words is "forty million, four hundred thirty-two thousand, eight hundred forty-three".