4000244042 has 12 divisors (see below), whose sum is σ = 6272596050. Its totient is φ = 1913159688.

The previous prime is 4000244023. The next prime is 4000244047. The reversal of 4000244042 is 2404420004.

It can be written as a sum of positive squares in only one way, i.e., 2913948361 + 1086295681 = 53981^2 + 32959^2 .

It is not an unprimeable number, because it can be changed into a prime (4000244047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1889417 + ... + 1891532.

Almost surely, 2^4000244042 is an apocalyptic number.

4000244042 is a deficient number, since it is larger than the sum of its proper divisors (2272352008).

4000244042 is a wasteful number, since it uses less digits than its factorization.

4000244042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780997 (or 3780974 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4000244042 is about 63247.4824953531. The cubic root of 4000244042 is about 1587.4333340223.

Adding to 4000244042 its reverse (2404420004), we get a palindrome (6404664046).

The spelling of 4000244042 in words is "four billion, two hundred forty-four thousand, forty-two".