40144403 has 8 divisors (see below), whose sum is σ = 43780800. Its totient is φ = 36586368.

The previous prime is 40144339. The next prime is 40144417. The reversal of 40144403 is 30444104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40144403 - 2⁶ = 40144339 is a prime.

It is a super-2 number, since 2×40144403² = 3223146184452818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40144483) 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 7 ways as a sum of consecutive naturals, for example, 18518 + ... + 20571.

It is an arithmetic number, because the mean of its divisors is an integer number (5472600).

Almost surely, 2^40144403 is an apocalyptic number.

40144403 is a deficient number, since it is larger than the sum of its proper divisors (3636397).

40144403 is a wasteful number, since it uses less digits than its factorization.

40144403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39181.

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

The square root of 40144403 is about 6335.9610952088. The cubic root of 40144403 is about 342.4062378538.

Adding to 40144403 its reverse (30444104), we get a palindrome (70588507).

The spelling of 40144403 in words is "forty million, one hundred forty-four thousand, four hundred three".