2685342 has 64 divisors (see below), whose sum is σ = 6428160. Its totient is φ = 739200.

The previous prime is 2685323. The next prime is 2685343. The reversal of 2685342 is 2435862.

It is a super-2 number, since 2×2685342² = 14422123313928, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁶ + 8 + 5³ + 3⁶ + 4⁷ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43992 + ... + 44052.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^2685342 is an apocalyptic number.

2685342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2685342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214080).

2685342 is an abundant number, since it is smaller than the sum of its proper divisors (3742818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2685342 is a wasteful number, since it uses less digits than its factorization.

2685342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129.

The product of its digits is 11520, while the sum is 30.

The square root of 2685342 is about 1638.7013150663. The cubic root of 2685342 is about 138.9952209250.

The spelling of 2685342 in words is "two million, six hundred eighty-five thousand, three hundred forty-two".