214403456 has 64 divisors (see below), whose sum is σ = 464654880. Its totient is φ = 98131968.

The previous prime is 214403443. The next prime is 214403459. The reversal of 214403456 is 654304412.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214403459) 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 7 ways as a sum of consecutive naturals, for example, 79181 + ... + 81843.

Almost surely, 2^214403456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214403456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232327440).

214403456 is an abundant number, since it is smaller than the sum of its proper divisors (250251424).

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

214403456 is a wasteful number, since it uses less digits than its factorization.

214403456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 214403456 is about 14642.5221871097. The cubic root of 214403456 is about 598.5180612948.

Adding to 214403456 its reverse (654304412), we get a palindrome (868707868).

The spelling of 214403456 in words is "two hundred fourteen million, four hundred three thousand, four hundred fifty-six".