2158346 has 4 divisors (see below), whose sum is σ = 3237522. Its totient is φ = 1079172.

The previous prime is 2158333. The next prime is 2158357. The reversal of 2158346 is 6438512.

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., 1500625 + 657721 = 1225^2 + 811^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539585 + ... + 539588.

2^2158346 is an apocalyptic number.

2158346 is a deficient number, since it is larger than the sum of its proper divisors (1079176).

2158346 is a wasteful number, since it uses less digits than its factorization.

2158346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079175.

The product of its digits is 5760, while the sum is 29.

The square root of 2158346 is about 1469.1310356806. The cubic root of 2158346 is about 129.2330782082.

The spelling of 2158346 in words is "two million, one hundred fifty-eight thousand, three hundred forty-six".