2158356 has 24 divisors (see below), whose sum is σ = 5078304. Its totient is φ = 713440.

The previous prime is 2158333. The next prime is 2158357. The reversal of 2158356 is 6538512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (211596).

2^2158356 is an apocalyptic number.

It is an amenable number.

2158356 is an abundant number, since it is smaller than the sum of its proper divisors (2919948).

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

2158356 is a wasteful number, since it uses less digits than its factorization.

2158356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1509 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 2158356 is about 1469.1344390491. The cubic root of 2158356 is about 129.2332777945.

The spelling of 2158356 in words is "two million, one hundred fifty-eight thousand, three hundred fifty-six".