2042207842 has 4 divisors (see below), whose sum is σ = 3063311766. Its totient is φ = 1021103920.

The previous prime is 2042207813. The next prime is 2042207851. The reversal of 2042207842 is 2487022402.

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., 1774852641 + 267355201 = 42129^2 + 16351^2 .

It is a super-2 number, since 2×2042207842² = 8341225739852593928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551959 + ... + 510551962.

Almost surely, 2^2042207842 is an apocalyptic number.

2042207842 is a deficient number, since it is larger than the sum of its proper divisors (1021103924).

2042207842 is a wasteful number, since it uses less digits than its factorization.

2042207842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021103923.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 2042207842 is about 45190.7937748387. The cubic root of 2042207842 is about 1268.7225135414.

The spelling of 2042207842 in words is "two billion, forty-two million, two hundred seven thousand, eight hundred forty-two".