340140222 has 48 divisors (see below), whose sum is σ = 780579072. Its totient is φ = 110960280.

The previous prime is 340140187. The next prime is 340140287. The reversal of 340140222 is 222041043.

340140222 is a `hidden beast` number, since 3 + 401 + 40 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 340140195 and 340140204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15397 + ... + 30287.

It is an arithmetic number, because the mean of its divisors is an integer number (16262064).

Almost surely, 2^340140222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340140222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390289536).

340140222 is an abundant number, since it is smaller than the sum of its proper divisors (440438850).

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

340140222 is a wasteful number, since it uses less digits than its factorization.

340140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14955 (or 14943 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 340140222 is about 18442.8908254644. The cubic root of 340140222 is about 698.0491409096.

Adding to 340140222 its reverse (222041043), we get a palindrome (562181265).

The spelling of 340140222 in words is "three hundred forty million, one hundred forty thousand, two hundred twenty-two".