2006400250 has 16 divisors (see below), whose sum is σ = 3755981736. Its totient is φ = 802560000.

The previous prime is 2006400161. The next prime is 2006400287. The reversal of 2006400250 is 520046002.

It can be written as a sum of positive squares in 4 ways, for example, as 1203187969 + 803212281 = 34687^2 + 28341^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4012551 + ... + 4013050.

Almost surely, 2^2006400250 is an apocalyptic number.

2006400250 is a deficient number, since it is larger than the sum of its proper divisors (1749581486).

2006400250 is an equidigital number, since it uses as much as digits as its factorization.

2006400250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025618 (or 8025608 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2006400250 is about 44792.8593639656. The cubic root of 2006400250 is about 1261.2635870993.

Adding to 2006400250 its reverse (520046002), we get a palindrome (2526446252).

The spelling of 2006400250 in words is "two billion, six million, four hundred thousand, two hundred fifty".