4005140144 has 20 divisors (see below), whose sum is σ = 8097349296. Its totient is φ = 1915501632.

The previous prime is 4005140141. The next prime is 4005140233. The reversal of 4005140144 is 4410415004.

It is a happy number.

It is a super-2 number, since 2×4005140144² = 32082295146160681472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (4005140141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5441399 + ... + 5442134.

Almost surely, 2^4005140144 is an apocalyptic number.

It is an amenable number.

4005140144 is an abundant number, since it is smaller than the sum of its proper divisors (4092209152).

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

4005140144 is a wasteful number, since it uses less digits than its factorization.

4005140144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10883564 (or 10883558 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 4005140144 is about 63286.1765632907. The cubic root of 4005140144 is about 1588.0807167528.

Adding to 4005140144 its reverse (4410415004), we get a palindrome (8415555148).

The spelling of 4005140144 in words is "four billion, five million, one hundred forty thousand, one hundred forty-four".