2020042040 has 32 divisors (see below), whose sum is σ = 4553865360. Its totient is φ = 806457600.

The previous prime is 2020042039. The next prime is 2020042043. The reversal of 2020042040 is 402400202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020042043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27626 + ... + 69305.

Almost surely, 2^2020042040 is an apocalyptic number.

2020042040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020042040 is an abundant number, since it is smaller than the sum of its proper divisors (2533823320).

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

2020042040 is a wasteful number, since it uses less digits than its factorization.

2020042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97463 (or 97459 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2020042040 is about 44944.8777949167. The cubic root of 2020042040 is about 1264.1156342831.

Adding to 2020042040 its reverse (402400202), we get a palindrome (2422442242).

The spelling of 2020042040 in words is "two billion, twenty million, forty-two thousand, forty".