1214304340 has 24 divisors (see below), whose sum is σ = 2550764160. Its totient is φ = 485583648.

The previous prime is 1214304337. The next prime is 1214304347. The reversal of 1214304340 is 434034121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214304347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92209 + ... + 104551.

It is an arithmetic number, because the mean of its divisors is an integer number (106281840).

Almost surely, 2^1214304340 is an apocalyptic number.

1214304340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214304340 is an abundant number, since it is smaller than the sum of its proper divisors (1336459820).

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

1214304340 is a wasteful number, since it uses less digits than its factorization.

1214304340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17271 (or 17269 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1214304340 is about 34846.8698737778. The cubic root of 1214304340 is about 1066.8642991008.

Adding to 1214304340 its reverse (434034121), we get a palindrome (1648338461).

The spelling of 1214304340 in words is "one billion, two hundred fourteen million, three hundred four thousand, three hundred forty".