1385211508 has 12 divisors (see below), whose sum is σ = 2431108512. Its totient is φ = 690609080.

The previous prime is 1385211497. The next prime is 1385211539. The reversal of 1385211508 is 8051125831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497608 + ... + 500383.

It is an arithmetic number, because the mean of its divisors is an integer number (202592376).

Almost surely, 2^1385211508 is an apocalyptic number.

It is an amenable number.

1385211508 is a deficient number, since it is larger than the sum of its proper divisors (1045897004).

1385211508 is a wasteful number, since it uses less digits than its factorization.

1385211508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998342 (or 998340 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 1385211508 is about 37218.4296820809. The cubic root of 1385211508 is about 1114.7360091433.

The spelling of 1385211508 in words is "one billion, three hundred eighty-five million, two hundred eleven thousand, five hundred eight".