2162858 has 4 divisors (see below), whose sum is σ = 3244290. Its totient is φ = 1081428.

The previous prime is 2162843. The next prime is 2162869. The reversal of 2162858 is 8582612.

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., 1885129 + 277729 = 1373^2 + 527^2 .

It is a d-powerful number, because it can be written as 2¹⁶ + 1 + 6² + 2²¹ + 8² + 5 + 8² .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540713 + ... + 540716.

2^2162858 is an apocalyptic number.

2162858 is a deficient number, since it is larger than the sum of its proper divisors (1081432).

2162858 is a wasteful number, since it uses less digits than its factorization.

2162858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081431.

The product of its digits is 7680, while the sum is 32.

The square root of 2162858 is about 1470.6658355996. The cubic root of 2162858 is about 129.3230690004.

The spelling of 2162858 in words is "two million, one hundred sixty-two thousand, eight hundred fifty-eight".