340221324 has 12 divisors (see below), whose sum is σ = 793849784. Its totient is φ = 113407104.

The previous prime is 340221307. The next prime is 340221337. The reversal of 340221324 is 423122043.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 340221324.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14175877 + ... + 14175900.

Almost surely, 2^340221324 is an apocalyptic number.

It is an amenable number.

340221324 is an abundant number, since it is smaller than the sum of its proper divisors (453628460).

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

340221324 is a wasteful number, since it uses less digits than its factorization.

340221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28351784 (or 28351782 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 340221324 is about 18445.0894278125. The cubic root of 340221324 is about 698.1046167387.

Adding to 340221324 its reverse (423122043), we get a palindrome (763343367).

The spelling of 340221324 in words is "three hundred forty million, two hundred twenty-one thousand, three hundred twenty-four".