4018442642 has 24 divisors (see below), whose sum is σ = 6260582988. Its totient is φ = 1934355360.

The previous prime is 4018442599. The next prime is 4018442651. The reversal of 4018442642 is 2462448104.

It can be written as a sum of positive squares in 2 ways, for example, as 2371787401 + 1646655241 = 48701^2 + 40579^2 .

It is a super-2 number, since 2×4018442642² = 32295762534087880328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373328 + ... + 383940.

Almost surely, 2^4018442642 is an apocalyptic number.

4018442642 is a deficient number, since it is larger than the sum of its proper divisors (2242140346).

4018442642 is a wasteful number, since it uses less digits than its factorization.

4018442642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10874 (or 10843 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 4018442642 is about 63391.1874159177. The cubic root of 4018442642 is about 1589.8369678441.

The spelling of 4018442642 in words is "four billion, eighteen million, four hundred forty-two thousand, six hundred forty-two".