2571426840 has 64 divisors (see below), whose sum is σ = 7729920000. Its totient is φ = 684323712.

The previous prime is 2571426829. The next prime is 2571426859. The reversal of 2571426840 is 486241752.

It is a super-2 number, since 2×2571426840² = 13224471986944771200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38409 + ... + 81351.

It is an arithmetic number, because the mean of its divisors is an integer number (120780000).

Almost surely, 2^2571426840 is an apocalyptic number.

2571426840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2571426840 is an abundant number, since it is smaller than the sum of its proper divisors (5158493160).

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

2571426840 is a wasteful number, since it uses less digits than its factorization.

2571426840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43456 (or 43452 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2571426840 is about 50709.2382115922. The cubic root of 2571426840 is about 1370.0131136969.

The spelling of 2571426840 in words is "two billion, five hundred seventy-one million, four hundred twenty-six thousand, eight hundred forty".