4020144232 has 32 divisors (see below), whose sum is σ = 8379463680. Its totient is φ = 1795596480.

The previous prime is 4020144223. The next prime is 4020144257. The reversal of 4020144232 is 2324410204.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620248 + ... + 626695.

It is an arithmetic number, because the mean of its divisors is an integer number (261858240).

Almost surely, 2^4020144232 is an apocalyptic number.

It is an amenable number.

4020144232 is an abundant number, since it is smaller than the sum of its proper divisors (4359319448).

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

4020144232 is a wasteful number, since it uses less digits than its factorization.

4020144232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246993 (or 1246989 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4020144232 is about 63404.6073404764. The cubic root of 4020144232 is about 1590.0613390890.

Adding to 4020144232 its reverse (2324410204), we get a palindrome (6344554436).

The spelling of 4020144232 in words is "four billion, twenty million, one hundred forty-four thousand, two hundred thirty-two".