2685402 has 24 divisors (see below), whose sum is σ = 5856084. Its totient is φ = 889344.

The previous prime is 2685401. The next prime is 2685407. The reversal of 2685402 is 2045862.

It can be written as a sum of positive squares in 2 ways, for example, as 2277081 + 408321 = 1509^2 + 639^2 .

It is a super-2 number, since 2×2685402² = 14422767803208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2685401) 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 11 ways as a sum of consecutive naturals, for example, 3088 + ... + 3860.

2^2685402 is an apocalyptic number.

2685402 is an abundant number, since it is smaller than the sum of its proper divisors (3170682).

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

2685402 is a wasteful number, since it uses less digits than its factorization.

2685402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2685402 is about 1638.7196221441. The cubic root of 2685402 is about 138.9962561316.

The spelling of 2685402 in words is "two million, six hundred eighty-five thousand, four hundred two".