1971741020 has 24 divisors (see below), whose sum is σ = 4167036384. Its totient is φ = 783671616.

The previous prime is 1971740917. The next prime is 1971741029. The reversal of 1971741020 is 201471791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1971741029) 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, 310832 + ... + 317111.

It is an arithmetic number, because the mean of its divisors is an integer number (173626516).

Almost surely, 2^1971741020 is an apocalyptic number.

1971741020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1971741020 is an abundant number, since it is smaller than the sum of its proper divisors (2195295364).

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

1971741020 is a wasteful number, since it uses less digits than its factorization.

1971741020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628109 (or 628107 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1971741020 is about 44404.2905584584. The cubic root of 1971741020 is about 1253.9588662659.

The spelling of 1971741020 in words is "one billion, nine hundred seventy-one million, seven hundred forty-one thousand, twenty".