1018342685 has 8 divisors (see below), whose sum is σ = 1264149720. Its totient is φ = 786581824.

The previous prime is 1018342679. The next prime is 1018342729. The reversal of 1018342685 is 5862438101.

It can be written as a sum of positive squares in 4 ways, for example, as 354455929 + 663886756 = 18827^2 + 25766^2 .

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 1018342685 - 2⁶ = 1018342621 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3511382 + ... + 3511671.

It is an arithmetic number, because the mean of its divisors is an integer number (158018715).

Almost surely, 2^1018342685 is an apocalyptic number.

It is an amenable number.

1018342685 is a deficient number, since it is larger than the sum of its proper divisors (245807035).

1018342685 is an equidigital number, since it uses as much as digits as its factorization.

1018342685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023087.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1018342685 is about 31911.4820245002. The cubic root of 1018342685 is about 1006.0772209035.

The spelling of 1018342685 in words is "one billion, eighteen million, three hundred forty-two thousand, six hundred eighty-five".