2542742808 has 32 divisors (see below), whose sum is σ = 6358273200. Its totient is φ = 847392128.

The previous prime is 2542742767. The next prime is 2542742833. The reversal of 2542742808 is 8082472452.

2542742808 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2542742808.

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, 135910 + ... + 153482.

Almost surely, 2^2542742808 is an apocalyptic number.

It is an amenable number.

2542742808 is an abundant number, since it is smaller than the sum of its proper divisors (3815530392).

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

2542742808 is a wasteful number, since it uses less digits than its factorization.

2542742808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23611 (or 23607 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 2542742808 is about 50425.6165852238. The cubic root of 2542742808 is about 1364.8999301379.

The spelling of 2542742808 in words is "two billion, five hundred forty-two million, seven hundred forty-two thousand, eight hundred eight".