2196431 has 16 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 1951488.

The previous prime is 2196413. The next prime is 2196433. The reversal of 2196431 is 1346912.

2196431 = 14² + 15² + ... + 187².

2196431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2196431 - 2⁶ = 2196367 is a prime.

It is a super-2 number, since 2×2196431² = 9648618275522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2196431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24635 + ... + 24723.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^2196431 is an apocalyptic number.

2196431 is a deficient number, since it is larger than the sum of its proper divisors (265969).

2196431 is a wasteful number, since it uses less digits than its factorization.

2196431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178.

The product of its digits is 1296, while the sum is 26.

The square root of 2196431 is about 1482.0360994254. The cubic root of 2196431 is about 129.9887761513.

The spelling of 2196431 in words is "two million, one hundred ninety-six thousand, four hundred thirty-one".