214320445 has 8 divisors (see below), whose sum is σ = 272313144. Its totient is φ = 161370624.

The previous prime is 214320439. The next prime is 214320467. The reversal of 214320445 is 544023412.

It is a happy number.

214320445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2152089 + 212168356 = 1467^2 + 14566^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214320445 - 2¹⁹ = 213796157 is a prime.

It is a super-3 number, since 3×214320445³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260624 + ... + 1260793.

It is an arithmetic number, because the mean of its divisors is an integer number (34039143).

Almost surely, 2^214320445 is an apocalyptic number.

It is an amenable number.

214320445 is a deficient number, since it is larger than the sum of its proper divisors (57992699).

214320445 is a wasteful number, since it uses less digits than its factorization.

214320445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521439.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 214320445 is about 14639.6873258960. The cubic root of 214320445 is about 598.4408081927.

Adding to 214320445 its reverse (544023412), we get a palindrome (758343857).

The spelling of 214320445 in words is "two hundred fourteen million, three hundred twenty thousand, four hundred forty-five".