2142004340 has 48 divisors (see below), whose sum is σ = 5151081600. Its totient is φ = 732934272.

The previous prime is 2142004331. The next prime is 2142004379. The reversal of 2142004340 is 434002412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56231 + ... + 86289.

It is an arithmetic number, because the mean of its divisors is an integer number (107314200).

Almost surely, 2^2142004340 is an apocalyptic number.

2142004340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142004340 is an abundant number, since it is smaller than the sum of its proper divisors (3009077260).

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

2142004340 is a wasteful number, since it uses less digits than its factorization.

2142004340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30584 (or 30582 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2142004340 is about 46281.7927483368. The cubic root of 2142004340 is about 1289.0609394724.

Adding to 2142004340 its reverse (434002412), we get a palindrome (2576006752).

The spelling of 2142004340 in words is "two billion, one hundred forty-two million, four thousand, three hundred forty".