2542640841 has 32 divisors (see below), whose sum is σ = 4105557120. Its totient is φ = 1545832512.

The previous prime is 2542640803. The next prime is 2542640843. The reversal of 2542640841 is 1480462452.

2542640841 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 640 + 8 + 4 + 1 = 666.

It is not a de Polignac number, because 2542640841 - 2⁷ = 2542640713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2542640796 and 2542640805.

It is not an unprimeable number, because it can be changed into a prime (2542640843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14506 + ... + 72771.

It is an arithmetic number, because the mean of its divisors is an integer number (128298660).

Almost surely, 2^2542640841 is an apocalyptic number.

It is an amenable number.

2542640841 is a deficient number, since it is larger than the sum of its proper divisors (1562916279).

2542640841 is a wasteful number, since it uses less digits than its factorization.

2542640841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87382 (or 87376 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 2542640841 is about 50424.6055115952. The cubic root of 2542640841 is about 1364.8816851925.

The spelling of 2542640841 in words is "two billion, five hundred forty-two million, six hundred forty thousand, eight hundred forty-one".