2142020344 has 8 divisors (see below), whose sum is σ = 4016288160. Its totient is φ = 1071010168.

The previous prime is 2142020329. The next prime is 2142020357. The reversal of 2142020344 is 4430202412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133876264 + ... + 133876279.

It is an arithmetic number, because the mean of its divisors is an integer number (502036020).

Almost surely, 2^2142020344 is an apocalyptic number.

It is an amenable number.

2142020344 is a deficient number, since it is larger than the sum of its proper divisors (1874267816).

2142020344 is a wasteful number, since it uses less digits than its factorization.

2142020344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267752549 (or 267752545 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2142020344 is about 46281.9656453785. The cubic root of 2142020344 is about 1289.0641498736.

Adding to 2142020344 its reverse (4430202412), we get a palindrome (6572222756).

The spelling of 2142020344 in words is "two billion, one hundred forty-two million, twenty thousand, three hundred forty-four".