4401440142 has 32 divisors (see below), whose sum is σ = 9934289280. Its totient is φ = 1287777120.

The previous prime is 4401440137. The next prime is 4401440189. The reversal of 4401440142 is 2410441044.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147888 + ... + 1151715.

It is an arithmetic number, because the mean of its divisors is an integer number (310446540).

Almost surely, 2^4401440142 is an apocalyptic number.

4401440142 is an abundant number, since it is smaller than the sum of its proper divisors (5532849138).

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

4401440142 is a wasteful number, since it uses less digits than its factorization.

4401440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299648.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4401440142 is about 66343.3503977603. The cubic root of 4401440142 is about 1638.8213003321.

Adding to 4401440142 its reverse (2410441044), we get a palindrome (6811881186).

The spelling of 4401440142 in words is "four billion, four hundred one million, four hundred forty thousand, one hundred forty-two".