214568240 has 20 divisors (see below), whose sum is σ = 498871344. Its totient is φ = 85827264.

The previous prime is 214568227. The next prime is 214568251. The reversal of 214568240 is 42865412.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 214568197 and 214568206.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1340972 + ... + 1341131.

Almost surely, 2^214568240 is an apocalyptic number.

214568240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214568240 is an abundant number, since it is smaller than the sum of its proper divisors (284303104).

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

214568240 is a wasteful number, since it uses less digits than its factorization.

214568240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682116 (or 2682110 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 214568240 is about 14648.1480058061. The cubic root of 214568240 is about 598.6713563113.

The spelling of 214568240 in words is "two hundred fourteen million, five hundred sixty-eight thousand, two hundred forty".