2571038240 has 48 divisors (see below), whose sum is σ = 6238256472. Its totient is φ = 1000617984.

The previous prime is 2571038191. The next prime is 2571038243. The reversal of 2571038240 is 428301752.

2571038240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2513217424 + 57820816 = 50132^2 + 7604^2 .

It is a super-2 number, since 2×2571038240² = 13220475263084595200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2571038197 and 2571038206.

It is not an unprimeable number, because it can be changed into a prime (2571038243) 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, 211229 + ... + 223068.

Almost surely, 2^2571038240 is an apocalyptic number.

2571038240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2571038240 is an abundant number, since it is smaller than the sum of its proper divisors (3667218232).

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

2571038240 is a wasteful number, since it uses less digits than its factorization.

2571038240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434349 (or 434341 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2571038240 is about 50705.4064178565. The cubic root of 2571038240 is about 1369.9440970316.

Adding to 2571038240 its reverse (428301752), we get a palindrome (2999339992).

The spelling of 2571038240 in words is "two billion, five hundred seventy-one million, thirty-eight thousand, two hundred forty".