4012440042 has 16 divisors (see below), whose sum is σ = 8642178720. Its totient is φ = 1234596912.

The previous prime is 4012440023. The next prime is 4012440049. The reversal of 4012440042 is 2400442104.

It is not an unprimeable number, because it can be changed into a prime (4012440049) 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, 25720692 + ... + 25720847.

It is an arithmetic number, because the mean of its divisors is an integer number (540136170).

Almost surely, 2^4012440042 is an apocalyptic number.

4012440042 is an abundant number, since it is smaller than the sum of its proper divisors (4629738678).

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

4012440042 is a wasteful number, since it uses less digits than its factorization.

4012440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51441557.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4012440042 is about 63343.8240241304. The cubic root of 4012440042 is about 1589.0449602666.

Adding to 4012440042 its reverse (2400442104), we get a palindrome (6412882146).

The spelling of 4012440042 in words is "four billion, twelve million, four hundred forty thousand, forty-two".