2438742556 has 12 divisors (see below), whose sum is σ = 4268824560. Its totient is φ = 1219078400.

The previous prime is 2438742547. The next prime is 2438742571. The reversal of 2438742556 is 6552478342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53920 + ... + 88231.

It is an arithmetic number, because the mean of its divisors is an integer number (355735380).

Almost surely, 2^2438742556 is an apocalyptic number.

It is an amenable number.

2438742556 is a deficient number, since it is larger than the sum of its proper divisors (1830082004).

2438742556 is a wasteful number, since it uses less digits than its factorization.

2438742556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146444 (or 146442 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 46.

The square root of 2438742556 is about 49383.6263958005. The cubic root of 2438742556 is about 1346.0317959911.

The spelling of 2438742556 in words is "two billion, four hundred thirty-eight million, seven hundred forty-two thousand, five hundred fifty-six".