1206442042 has 32 divisors (see below), whose sum is σ = 1967777280. Its totient is φ = 551448000.

The previous prime is 1206442007. The next prime is 1206442067. The reversal of 1206442042 is 2402446021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1206441998 and 1206442016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454884 + ... + 1455712.

It is an arithmetic number, because the mean of its divisors is an integer number (61493040).

Almost surely, 2^1206442042 is an apocalyptic number.

1206442042 is a deficient number, since it is larger than the sum of its proper divisors (761335238).

1206442042 is a wasteful number, since it uses less digits than its factorization.

1206442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1206442042 is about 34733.8745607224. The cubic root of 1206442042 is about 1064.5567573702.

Adding to 1206442042 its reverse (2402446021), we get a palindrome (3608888063).

The spelling of 1206442042 in words is "one billion, two hundred six million, four hundred forty-two thousand, forty-two".