2971646420 has 24 divisors (see below), whose sum is σ = 6244476000. Its totient is φ = 1187893152.

The previous prime is 2971646411. The next prime is 2971646423. The reversal of 2971646420 is 246461792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971646423) 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, 15470 + ... + 78629.

It is an arithmetic number, because the mean of its divisors is an integer number (260186500).

Almost surely, 2^2971646420 is an apocalyptic number.

2971646420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2971646420 is an abundant number, since it is smaller than the sum of its proper divisors (3272829580).

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

2971646420 is a wasteful number, since it uses less digits than its factorization.

2971646420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95687 (or 95685 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2971646420 is about 54512.8096872652. The cubic root of 2971646420 is about 1437.6915204936.

The spelling of 2971646420 in words is "two billion, nine hundred seventy-one million, six hundred forty-six thousand, four hundred twenty".