1538714938 has 8 divisors (see below), whose sum is σ = 2321414388. Its totient is φ = 764910144.

The previous prime is 1538714929. The next prime is 1538714963. The reversal of 1538714938 is 8394178351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1528262649 + 10452289 = 39093^2 + 3233^2 .

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 = 1538714891 and 1538714900.

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, 2223231 + ... + 2223922.

Almost surely, 2^1538714938 is an apocalyptic number.

1538714938 is a deficient number, since it is larger than the sum of its proper divisors (782699450).

1538714938 is a wasteful number, since it uses less digits than its factorization.

1538714938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447328.

The product of its digits is 725760, while the sum is 49.

The square root of 1538714938 is about 39226.4571176139. The cubic root of 1538714938 is about 1154.4790509379.

The spelling of 1538714938 in words is "one billion, five hundred thirty-eight million, seven hundred fourteen thousand, nine hundred thirty-eight".