2193456 has 20 divisors (see below), whose sum is σ = 5666552. Its totient is φ = 731136.

The previous prime is 2193449. The next prime is 2193463. The reversal of 2193456 is 6543912.

It is an interprime number because it is at equal distance from previous prime (2193449) and next prime (2193463).

It is a super-2 number, since 2×2193456² = 9622498447872, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 9⁵ + 3¹¹ + 4⁶ + 5⁹ + 6 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22801 + ... + 22896.

2^2193456 is an apocalyptic number.

It is an amenable number.

2193456 is an abundant number, since it is smaller than the sum of its proper divisors (3473096).

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

2193456 is a wasteful number, since it uses less digits than its factorization.

2193456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45708 (or 45702 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 2193456 is about 1481.0320725764. The cubic root of 2193456 is about 129.9300609994.

The spelling of 2193456 in words is "two million, one hundred ninety-three thousand, four hundred fifty-six".