1383879664 has 40 divisors (see below), whose sum is σ = 2759028272. Its totient is φ = 672053760.

The previous prime is 1383879659. The next prime is 1383879689. The reversal of 1383879664 is 4669783831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118972 + ... + 130084.

Almost surely, 2^1383879664 is an apocalyptic number.

It is an amenable number.

1383879664 is a deficient number, since it is larger than the sum of its proper divisors (1375148608).

1383879664 is a wasteful number, since it uses less digits than its factorization.

1383879664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345 (or 11339 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 1383879664 is about 37200.5331144595. The cubic root of 1383879664 is about 1114.3786315804.

The spelling of 1383879664 in words is "one billion, three hundred eighty-three million, eight hundred seventy-nine thousand, six hundred sixty-four".