40044134 has 32 divisors (see below), whose sum is σ = 68839680. Its totient is φ = 17317152.

The previous prime is 40044131. The next prime is 40044139. The reversal of 40044134 is 43144004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50489 + ... + 51275.

It is an arithmetic number, because the mean of its divisors is an integer number (2151240).

Almost surely, 2^40044134 is an apocalyptic number.

40044134 is a deficient number, since it is larger than the sum of its proper divisors (28795546).

40044134 is a wasteful number, since it uses less digits than its factorization.

40044134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40044134 is about 6328.0434574993. The cubic root of 40044134 is about 342.1209232346.

Adding to 40044134 its reverse (43144004), we get a palindrome (83188138).

The spelling of 40044134 in words is "forty million, forty-four thousand, one hundred thirty-four".