2040120342 has 72 divisors (see below), whose sum is σ = 4852531944. Its totient is φ = 619062912.

The previous prime is 2040120283. The next prime is 2040120359. The reversal of 2040120342 is 2430210402.

2040120342 is a `hidden beast` number, since 20 + 401 + 203 + 42 = 666.

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 35 ways as a sum of consecutive naturals, for example, 217473 + ... + 226659.

It is an arithmetic number, because the mean of its divisors is an integer number (67396277).

Almost surely, 2^2040120342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2040120342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426265972).

2040120342 is an abundant number, since it is smaller than the sum of its proper divisors (2812411602).

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

2040120342 is a wasteful number, since it uses less digits than its factorization.

2040120342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9294 (or 9278 counting only the distinct ones).

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

The square root of 2040120342 is about 45167.6913512303. The cubic root of 2040120342 is about 1268.2900794042.

Adding to 2040120342 its reverse (2430210402), we get a palindrome (4470330744).

The spelling of 2040120342 in words is "two billion, forty million, one hundred twenty thousand, three hundred forty-two".