2134345642 has 16 divisors (see below), whose sum is σ = 3761224992. Its totient is φ = 895529520.

The previous prime is 2134345627. The next prime is 2134345649. The reversal of 2134345642 is 2465434312.

It is a junction number, because it is equal to n+sod(n) for n = 2134345598 and 2134345607.

It is not an unprimeable number, because it can be changed into a prime (2134345649) 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, 3731088 + ... + 3731659.

It is an arithmetic number, because the mean of its divisors is an integer number (235076562).

Almost surely, 2^2134345642 is an apocalyptic number.

2134345642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2134345642 is a deficient number, since it is larger than the sum of its proper divisors (1626879350).

2134345642 is a wasteful number, since it uses less digits than its factorization.

2134345642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462773.

The product of its digits is 69120, while the sum is 34.

The square root of 2134345642 is about 46198.9787982375. The cubic root of 2134345642 is about 1287.5227667071.

Adding to 2134345642 its reverse (2465434312), we get a palindrome (4599779954).

The spelling of 2134345642 in words is "two billion, one hundred thirty-four million, three hundred forty-five thousand, six hundred forty-two".