2971997020 has 24 divisors (see below), whose sum is σ = 6301792224. Its totient is φ = 1177256256.

The previous prime is 2971997009. The next prime is 2971997027. The reversal of 2971997020 is 207991792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971997027) 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, 719299 + ... + 723418.

It is an arithmetic number, because the mean of its divisors is an integer number (262574676).

Almost surely, 2^2971997020 is an apocalyptic number.

2971997020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2971997020 is an abundant number, since it is smaller than the sum of its proper divisors (3329795204).

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

2971997020 is a wasteful number, since it uses less digits than its factorization.

2971997020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442829 (or 1442827 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 2971997020 is about 54516.0253503500. The cubic root of 2971997020 is about 1437.7480587168.

The spelling of 2971997020 in words is "two billion, nine hundred seventy-one million, nine hundred ninety-seven thousand, twenty".