4001342042 has 4 divisors (see below), whose sum is σ = 6002013066. Its totient is φ = 2000671020.

The previous prime is 4001342027. The next prime is 4001342089. The reversal of 4001342042 is 2402431004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3683397481 + 317944561 = 60691^2 + 17831^2 .

It is a super-3 number, since 3×4001342042³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000335509 + ... + 1000335512.

Almost surely, 2^4001342042 is an apocalyptic number.

4001342042 is a deficient number, since it is larger than the sum of its proper divisors (2000671024).

4001342042 is a wasteful number, since it uses less digits than its factorization.

4001342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000671023.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4001342042 is about 63256.1620871833. The cubic root of 4001342042 is about 1587.5785620244.

Adding to 4001342042 its reverse (2402431004), we get a palindrome (6403773046).

The spelling of 4001342042 in words is "four billion, one million, three hundred forty-two thousand, forty-two".