1158216 has 16 divisors (see below), whose sum is σ = 2895600. Its totient is φ = 386064.

The previous prime is 1158203. The next prime is 1158217. The reversal of 1158216 is 6128511.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 48259 = 1158216 / (1 + 1 + 5 + 8 + 2 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (1158217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24106 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (180975).

2^1158216 is an apocalyptic number.

It is an amenable number.

1158216 is an abundant number, since it is smaller than the sum of its proper divisors (1737384).

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

1158216 is a wasteful number, since it uses less digits than its factorization.

1158216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48268 (or 48264 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 1158216 is about 1076.2044415444. The cubic root of 1158216 is about 105.0178654408.

The spelling of 1158216 in words is "one million, one hundred fifty-eight thousand, two hundred sixteen".