2020451742 has 32 divisors (see below), whose sum is σ = 4491970560. Its totient is φ = 673172280.

The previous prime is 2020451729. The next prime is 2020451749. The reversal of 2020451742 is 2471540202.

2020451742 is a `hidden beast` number, since 202 + 0 + 451 + 7 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020451749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129283 + ... + 144065.

It is an arithmetic number, because the mean of its divisors is an integer number (140374080).

Almost surely, 2^2020451742 is an apocalyptic number.

2020451742 is an abundant number, since it is smaller than the sum of its proper divisors (2471518818).

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

2020451742 is a wasteful number, since it uses less digits than its factorization.

2020451742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325 (or 17319 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 2020451742 is about 44949.4353913372. The cubic root of 2020451742 is about 1264.2010905398.

Adding to 2020451742 its reverse (2471540202), we get a palindrome (4491991944).

The spelling of 2020451742 in words is "two billion, twenty million, four hundred fifty-one thousand, seven hundred forty-two".