2006451386 has 8 divisors (see below), whose sum is σ = 3010272660. Its totient is φ = 1003027168.

The previous prime is 2006451373. The next prime is 2006451389. The reversal of 2006451386 is 6831546002.

It can be written as a sum of positive squares in 2 ways, for example, as 2005696225 + 755161 = 44785^2 + 869^2 .

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 (2006451389) 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, 86291 + ... + 107046.

Almost surely, 2^2006451386 is an apocalyptic number.

2006451386 is a deficient number, since it is larger than the sum of its proper divisors (1003821274).

2006451386 is a wasteful number, since it uses less digits than its factorization.

2006451386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198528.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2006451386 is about 44793.4301655946. The cubic root of 2006451386 is about 1261.2743020479.

Adding to 2006451386 its reverse (6831546002), we get a palindrome (8837997388).

The spelling of 2006451386 in words is "two billion, six million, four hundred fifty-one thousand, three hundred eighty-six".