2538815242 has 8 divisors (see below), whose sum is σ = 3870652932. Its totient is φ = 1248597600.

The previous prime is 2538815221. The next prime is 2538815261. The reversal of 2538815242 is 2425188352.

It can be written as a sum of positive squares in 2 ways, for example, as 1650715641 + 888099601 = 40629^2 + 29801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2538815195 and 2538815204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10404859 + ... + 10405102.

Almost surely, 2^2538815242 is an apocalyptic number.

2538815242 is a deficient number, since it is larger than the sum of its proper divisors (1331837690).

2538815242 is a wasteful number, since it uses less digits than its factorization.

2538815242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20810024.

The product of its digits is 153600, while the sum is 40.

The square root of 2538815242 is about 50386.6573806995. The cubic root of 2538815242 is about 1364.1968183894.

The spelling of 2538815242 in words is "two billion, five hundred thirty-eight million, eight hundred fifteen thousand, two hundred forty-two".