40443834 has 16 divisors (see below), whose sum is σ = 81689760. Its totient is φ = 13347600.

The previous prime is 40443791. The next prime is 40443839. The reversal of 40443834 is 43834404.

It is not an unprimeable number, because it can be changed into a prime (40443839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32764 + ... + 33975.

It is an arithmetic number, because the mean of its divisors is an integer number (5105610).

Almost surely, 2^40443834 is an apocalyptic number.

40443834 is an abundant number, since it is smaller than the sum of its proper divisors (41245926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40443834 is a wasteful number, since it uses less digits than its factorization.

40443834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66845.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 40443834 is about 6359.5466819578. The cubic root of 40443834 is about 343.2554486565.

The spelling of 40443834 in words is "forty million, four hundred forty-three thousand, eight hundred thirty-four".