2571946420 has 24 divisors (see below), whose sum is σ = 5481703584. Its totient is φ = 1013423136.

The previous prime is 2571946417. The next prime is 2571946453. The reversal of 2571946420 is 246491752.

It is a super-2 number, since 2×2571946420² = 13229816774701632800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958342 + ... + 961021.

It is an arithmetic number, because the mean of its divisors is an integer number (228404316).

Almost surely, 2^2571946420 is an apocalyptic number.

2571946420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2571946420 is an abundant number, since it is smaller than the sum of its proper divisors (2909757164).

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

2571946420 is a wasteful number, since it uses less digits than its factorization.

2571946420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919439 (or 1919437 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 2571946420 is about 50714.3610824390. The cubic root of 2571946420 is about 1370.1053819873.

The spelling of 2571946420 in words is "two billion, five hundred seventy-one million, nine hundred forty-six thousand, four hundred twenty".