1214340340 has 24 divisors (see below), whose sum is σ = 2551199112. Its totient is φ = 485529600.

The previous prime is 1214340317. The next prime is 1214340343. The reversal of 1214340340 is 430434121.

It can be written as a sum of positive squares in 4 ways, for example, as 741799696 + 472540644 = 27236^2 + 21738^2 .

It is a super-2 number, since 2×1214340340² = 2949244922702631200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214340343) 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, 40740 + ... + 63940.

It is an arithmetic number, because the mean of its divisors is an integer number (106299963).

Almost surely, 2^1214340340 is an apocalyptic number.

1214340340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214340340 is an abundant number, since it is smaller than the sum of its proper divisors (1336858772).

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

1214340340 is a wasteful number, since it uses less digits than its factorization.

1214340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25827 (or 25825 counting only the distinct ones).

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

The square root of 1214340340 is about 34847.3864156266. The cubic root of 1214340340 is about 1066.8748419644.

Adding to 1214340340 its reverse (430434121), we get a palindrome (1644774461).

The spelling of 1214340340 in words is "one billion, two hundred fourteen million, three hundred forty thousand, three hundred forty".