1642262005 has 8 divisors (see below), whose sum is σ = 1970940600. Its totient is φ = 1313658816.

The previous prime is 1642261993. The next prime is 1642262023. The reversal of 1642262005 is 5002622461.

1642262005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 902041156 + 740220849 = 30034^2 + 27207^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1642262005 - 2²¹ = 1640164853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56331 + ... + 80359.

It is an arithmetic number, because the mean of its divisors is an integer number (246367575).

Almost surely, 2^1642262005 is an apocalyptic number.

It is an amenable number.

1642262005 is a deficient number, since it is larger than the sum of its proper divisors (328678595).

1642262005 is a wasteful number, since it uses less digits than its factorization.

1642262005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37703.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1642262005 is about 40524.8319552346. The cubic root of 1642262005 is about 1179.8156383904.

Adding to 1642262005 its reverse (5002622461), we get a palindrome (6644884466).

The spelling of 1642262005 in words is "one billion, six hundred forty-two million, two hundred sixty-two thousand, five".