40144093 has 16 divisors (see below), whose sum is σ = 46347840. Its totient is φ = 34387200.

The previous prime is 40144079. The next prime is 40144099. The reversal of 40144093 is 39044104.

It is a happy number.

40144093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40144093 - 2⁵ = 40144061 is a prime.

It is a super-2 number, since 2×40144093² = 3223096405585298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49971 + ... + 50767.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^40144093 is an apocalyptic number.

It is an amenable number.

40144093 is a deficient number, since it is larger than the sum of its proper divisors (6203747).

40144093 is a wasteful number, since it uses less digits than its factorization.

40144093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40144093 is about 6335.9366316276. The cubic root of 40144093 is about 342.4053564839.

Adding to 40144093 its reverse (39044104), we get a palindrome (79188197).

The spelling of 40144093 in words is "forty million, one hundred forty-four thousand, ninety-three".