1538608379 has 12 divisors (see below), whose sum is σ = 1952520408. Its totient is φ = 1198915200.

The previous prime is 1538608361. The next prime is 1538608381. The reversal of 1538608379 is 9738068351.

It is a happy number.

It is not a de Polignac number, because 1538608379 - 2²⁸ = 1270172923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538698379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1426742 + ... + 1427819.

It is an arithmetic number, because the mean of its divisors is an integer number (162710034).

Almost surely, 2^1538608379 is an apocalyptic number.

1538608379 is a deficient number, since it is larger than the sum of its proper divisors (413912029).

1538608379 is a wasteful number, since it uses less digits than its factorization.

1538608379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854586 (or 2854579 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1538608379 is about 39225.0988399010. The cubic root of 1538608379 is about 1154.4524003500.

The spelling of 1538608379 in words is "one billion, five hundred thirty-eight million, six hundred eight thousand, three hundred seventy-nine".