2134340240 has 20 divisors (see below), whose sum is σ = 4962341244. Its totient is φ = 853736064.

The previous prime is 2134340237. The next prime is 2134340267. The reversal of 2134340240 is 420434312.

It can be written as a sum of positive squares in 2 ways, for example, as 869542144 + 1264798096 = 29488^2 + 35564^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 13339547 + ... + 13339706.

Almost surely, 2^2134340240 is an apocalyptic number.

2134340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2134340240 is an abundant number, since it is smaller than the sum of its proper divisors (2828001004).

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

2134340240 is a wasteful number, since it uses less digits than its factorization.

2134340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26679266 (or 26679260 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2134340240 is about 46198.9203337048. The cubic root of 2134340240 is about 1287.5216804719.

Adding to 2134340240 its reverse (420434312), we get a palindrome (2554774552).

The spelling of 2134340240 in words is "two billion, one hundred thirty-four million, three hundred forty thousand, two hundred forty".