40144203 has 12 divisors (see below), whose sum is σ = 63257688. Its totient is φ = 24329760.

The previous prime is 40144183. The next prime is 40144229. The reversal of 40144203 is 30244104.

It is not a de Polignac number, because 40144203 - 2¹⁰ = 40143179 is a prime.

It is a super-2 number, since 2×40144203² = 3223114069010418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40144003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202650 + ... + 202847.

It is an arithmetic number, because the mean of its divisors is an integer number (5271474).

Almost surely, 2^40144203 is an apocalyptic number.

40144203 is a deficient number, since it is larger than the sum of its proper divisors (23113485).

40144203 is a wasteful number, since it uses less digits than its factorization.

40144203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405514 (or 405511 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40144203 is about 6335.9453122640. The cubic root of 40144203 is about 342.4056692286.

Adding to 40144203 its reverse (30244104), we get a palindrome (70388307).

Subtracting from 40144203 its reverse (30244104), we obtain a palindrome (9900099).

The spelling of 40144203 in words is "forty million, one hundred forty-four thousand, two hundred three".