2185426 has 4 divisors (see below), whose sum is σ = 3278142. Its totient is φ = 1092712.

The previous prime is 2185409. The next prime is 2185427. The reversal of 2185426 is 6245812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 9801 = 1475^2 + 99^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2185394 and 2185403.

It is not an unprimeable number, because it can be changed into a prime (2185427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546355 + ... + 546358.

2^2185426 is an apocalyptic number.

2185426 is a deficient number, since it is larger than the sum of its proper divisors (1092716).

2185426 is a wasteful number, since it uses less digits than its factorization.

2185426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092715.

The product of its digits is 3840, while the sum is 28.

The square root of 2185426 is about 1478.3186395361. The cubic root of 2185426 is about 129.7713139251.

The spelling of 2185426 in words is "two million, one hundred eighty-five thousand, four hundred twenty-six".