1538374384 has 20 divisors (see below), whose sum is σ = 2985130120. Its totient is φ = 768018240.

The previous prime is 1538374381. The next prime is 1538374399. The reversal of 1538374384 is 4834738351.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538374381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62154 + ... + 83305.

It is an arithmetic number, because the mean of its divisors is an integer number (149256506).

Almost surely, 2^1538374384 is an apocalyptic number.

It is an amenable number.

1538374384 is a deficient number, since it is larger than the sum of its proper divisors (1446755736).

1538374384 is a wasteful number, since it uses less digits than its factorization.

1538374384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146128 (or 146122 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 1538374384 is about 39222.1160061514. The cubic root of 1538374384 is about 1154.3938734828.

The spelling of 1538374384 in words is "one billion, five hundred thirty-eight million, three hundred seventy-four thousand, three hundred eighty-four".