2215458 has 32 divisors (see below), whose sum is σ = 5627520. Its totient is φ = 632880.

The previous prime is 2215417. The next prime is 2215463. The reversal of 2215458 is 8545122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (175860).

2^2215458 is an apocalyptic number.

2215458 is an abundant number, since it is smaller than the sum of its proper divisors (3412062).

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

2215458 is a wasteful number, since it uses less digits than its factorization.

2215458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5879 (or 5873 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2215458 is about 1488.4414667699. The cubic root of 2215458 is about 130.3630482951.

The spelling of 2215458 in words is "two million, two hundred fifteen thousand, four hundred fifty-eight".