1200042002 has 16 divisors (see below), whose sum is σ = 1927369080. Its totient is φ = 558379008.

The previous prime is 1200042001. The next prime is 1200042029. The reversal of 1200042002 is 2002400021.

It can be written as a sum of positive squares in 4 ways, for example, as 785064361 + 414977641 = 28019^2 + 20371^2 .

It is not an unprimeable number, because it can be changed into a prime (1200042001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195263 + ... + 201314.

Almost surely, 2^1200042002 is an apocalyptic number.

1200042002 is a deficient number, since it is larger than the sum of its proper divisors (727327078).

1200042002 is a wasteful number, since it uses less digits than its factorization.

1200042002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396685.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1200042002 is about 34641.6223927229. The cubic root of 1200042002 is about 1062.6709673116.

Adding to 1200042002 its reverse (2002400021), we get a palindrome (3202442023).

The spelling of 1200042002 in words is "one billion, two hundred million, forty-two thousand, two".