1381334008 has 8 divisors (see below), whose sum is σ = 2590001280. Its totient is φ = 690667000.

The previous prime is 1381333999. The next prime is 1381334027. The reversal of 1381334008 is 8004331831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86333368 + ... + 86333383.

It is an arithmetic number, because the mean of its divisors is an integer number (323750160).

Almost surely, 2^1381334008 is an apocalyptic number.

It is an amenable number.

1381334008 is a deficient number, since it is larger than the sum of its proper divisors (1208667272).

1381334008 is a wasteful number, since it uses less digits than its factorization.

1381334008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172666757 (or 172666753 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1381334008 is about 37166.3020490336. The cubic root of 1381334008 is about 1113.6949098291.

Adding to 1381334008 its reverse (8004331831), we get a palindrome (9385665839).

The spelling of 1381334008 in words is "one billion, three hundred eighty-one million, three hundred thirty-four thousand, eight".