2142434040 has 64 divisors (see below), whose sum is σ = 6430384800. Its totient is φ = 571041792.

The previous prime is 2142434029. The next prime is 2142434059. The reversal of 2142434040 is 404342412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2142434040.

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, 428676 + ... + 433644.

Almost surely, 2^2142434040 is an apocalyptic number.

2142434040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142434040 is an abundant number, since it is smaller than the sum of its proper divisors (4287950760).

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

2142434040 is a wasteful number, since it uses less digits than its factorization.

2142434040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576 (or 8572 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2142434040 is about 46286.4347298428. The cubic root of 2142434040 is about 1289.1471317114.

Adding to 2142434040 its reverse (404342412), we get a palindrome (2546776452).

The spelling of 2142434040 in words is "two billion, one hundred forty-two million, four hundred thirty-four thousand, forty".