214316440 has 32 divisors (see below), whose sum is σ = 519306480. Its totient is φ = 79132032.

The previous prime is 214316419. The next prime is 214316441. The reversal of 214316440 is 44613412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214316441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205554 + ... + 206593.

Almost surely, 2^214316440 is an apocalyptic number.

214316440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214316440 is an abundant number, since it is smaller than the sum of its proper divisors (304990040).

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

214316440 is a wasteful number, since it uses less digits than its factorization.

214316440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412171 (or 412167 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 214316440 is about 14639.5505395487. The cubic root of 214316440 is about 598.4370804874.

Adding to 214316440 its reverse (44613412), we get a palindrome (258929852).

The spelling of 214316440 in words is "two hundred fourteen million, three hundred sixteen thousand, four hundred forty".