214222340 has 24 divisors (see below), whose sum is σ = 473544960. Its totient is φ = 81178848.

The previous prime is 214222303. The next prime is 214222361. The reversal of 214222340 is 43222412.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 281492 + ... + 282251.

It is an arithmetic number, because the mean of its divisors is an integer number (19731040).

Almost surely, 2^214222340 is an apocalyptic number.

214222340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214222340 is an abundant number, since it is smaller than the sum of its proper divisors (259322620).

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

214222340 is a wasteful number, since it uses less digits than its factorization.

214222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563771 (or 563769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 214222340 is about 14636.3362902060. The cubic root of 214222340 is about 598.3494823342.

Adding to 214222340 its reverse (43222412), we get a palindrome (257444752).

The spelling of 214222340 in words is "two hundred fourteen million, two hundred twenty-two thousand, three hundred forty".