1642938086 has 8 divisors (see below), whose sum is σ = 2478023184. Its totient is φ = 816930360.

The previous prime is 1642938053. The next prime is 1642938107. The reversal of 1642938086 is 6808392461.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1642938086.

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 3 ways as a sum of consecutive naturals, for example, 2268890 + ... + 2269613.

It is an arithmetic number, because the mean of its divisors is an integer number (309752898).

Almost surely, 2^1642938086 is an apocalyptic number.

1642938086 is a deficient number, since it is larger than the sum of its proper divisors (835085098).

1642938086 is a wasteful number, since it uses less digits than its factorization.

1642938086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538686.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1642938086 is about 40533.1726614140. The cubic root of 1642938086 is about 1179.9775170474.

The spelling of 1642938086 in words is "one billion, six hundred forty-two million, nine hundred thirty-eight thousand, eighty-six".