1385376471 has 12 divisors (see below), whose sum is σ = 2020528848. Its totient is φ = 914616864.

The previous prime is 1385376449. The next prime is 1385376539. The reversal of 1385376471 is 1746735831.

It is not a de Polignac number, because 1385376471 - 2⁵ = 1385376439 is a prime.

It is a super-3 number, since 3×1385376471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385376571) 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, 746310 + ... + 748163.

It is an arithmetic number, because the mean of its divisors is an integer number (168377404).

Almost surely, 2^1385376471 is an apocalyptic number.

1385376471 is a deficient number, since it is larger than the sum of its proper divisors (635152377).

1385376471 is a wasteful number, since it uses less digits than its factorization.

1385376471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494582 (or 1494579 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 1385376471 is about 37220.6457628021. The cubic root of 1385376471 is about 1114.7802581974.

The spelling of 1385376471 in words is "one billion, three hundred eighty-five million, three hundred seventy-six thousand, four hundred seventy-one".