2040021342 has 32 divisors (see below), whose sum is σ = 4568002560. Its totient is φ = 674813880.

The previous prime is 2040021283. The next prime is 2040021367. The reversal of 2040021342 is 2431200402.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 137118 + ... + 151265.

It is an arithmetic number, because the mean of its divisors is an integer number (142750080).

Almost surely, 2^2040021342 is an apocalyptic number.

2040021342 is an abundant number, since it is smaller than the sum of its proper divisors (2527981218).

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

2040021342 is a wasteful number, since it uses less digits than its factorization.

2040021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288525 (or 288519 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2040021342 is about 45166.5954218380. The cubic root of 2040021342 is about 1268.2695638254.

Adding to 2040021342 its reverse (2431200402), we get a palindrome (4471221744).

The spelling of 2040021342 in words is "two billion, forty million, twenty-one thousand, three hundred forty-two".