1538245386 has 24 divisors (see below), whose sum is σ = 3343525380. Its totient is φ = 511108416.

The previous prime is 1538245351. The next prime is 1538245393. The reversal of 1538245386 is 6835428351.

1538245386 is a `hidden beast` number, since 153 + 82 + 45 + 386 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1450467225 + 87778161 = 38085^2 + 9369^2 .

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 11 ways as a sum of consecutive naturals, for example, 130881 + ... + 142148.

Almost surely, 2^1538245386 is an apocalyptic number.

1538245386 is an abundant number, since it is smaller than the sum of its proper divisors (1805279994).

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

1538245386 is a wasteful number, since it uses less digits than its factorization.

1538245386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273350 (or 273347 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 1538245386 is about 39220.4715167985. The cubic root of 1538245386 is about 1154.3616059444.

The spelling of 1538245386 in words is "one billion, five hundred thirty-eight million, two hundred forty-five thousand, three hundred eighty-six".