4004432142 has 16 divisors (see below), whose sum is σ = 8012127312. Its totient is φ = 1334266880.

The previous prime is 4004432137. The next prime is 4004432149. The reversal of 4004432142 is 2412344004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004432149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119859 + ... + 149582.

It is an arithmetic number, because the mean of its divisors is an integer number (500757957).

Almost surely, 2^4004432142 is an apocalyptic number.

4004432142 is an abundant number, since it is smaller than the sum of its proper divisors (4007695170).

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

4004432142 is a wasteful number, since it uses less digits than its factorization.

4004432142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271923.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4004432142 is about 63280.5826616664. The cubic root of 4004432142 is about 1587.9871344608.

Adding to 4004432142 its reverse (2412344004), we get a palindrome (6416776146).

The spelling of 4004432142 in words is "four billion, four million, four hundred thirty-two thousand, one hundred forty-two".