2006245642 has 8 divisors (see below), whose sum is σ = 3022510500. Its totient is φ = 998742144.

The previous prime is 2006245589. The next prime is 2006245643. The reversal of 2006245642 is 2465426002.

It can be written as a sum of positive squares in 2 ways, for example, as 1999788961 + 6456681 = 44719^2 + 2541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2006245643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189767 + ... + 2190682.

Almost surely, 2^2006245642 is an apocalyptic number.

2006245642 is a deficient number, since it is larger than the sum of its proper divisors (1016264858).

2006245642 is a wasteful number, since it uses less digits than its factorization.

2006245642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380680.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2006245642 is about 44791.1335199278. The cubic root of 2006245642 is about 1261.2311897001.

The spelling of 2006245642 in words is "two billion, six million, two hundred forty-five thousand, six hundred forty-two".