214442440 has 16 divisors (see below), whose sum is σ = 482495580. Its totient is φ = 85776960.

The previous prime is 214442413. The next prime is 214442441. The reversal of 214442440 is 44244412.

It can be written as a sum of positive squares in 2 ways, for example, as 214271044 + 171396 = 14638^2 + 414^2 .

It is not an unprimeable number, because it can be changed into a prime (214442441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2680491 + ... + 2680570.

Almost surely, 2^214442440 is an apocalyptic number.

214442440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214442440 is an abundant number, since it is smaller than the sum of its proper divisors (268053140).

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

214442440 is a wasteful number, since it uses less digits than its factorization.

214442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361072 (or 5361068 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 214442440 is about 14643.8533180307. The cubic root of 214442440 is about 598.5543343638.

Adding to 214442440 its reverse (44244412), we get a palindrome (258686852).

The spelling of 214442440 in words is "two hundred fourteen million, four hundred forty-two thousand, four hundred forty".