1383278688 has 96 divisors (see below), whose sum is σ = 4401371520. Its totient is φ = 419172480.

The previous prime is 1383278657. The next prime is 1383278693. The reversal of 1383278688 is 8868723831.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63270 + ... + 82277.

It is an arithmetic number, because the mean of its divisors is an integer number (45847620).

Almost surely, 2^1383278688 is an apocalyptic number.

1383278688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1383278688 is an abundant number, since it is smaller than the sum of its proper divisors (3018092832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1383278688 is a wasteful number, since it uses less digits than its factorization.

1383278688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145577 (or 145563 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 1383278688 is about 37192.4547186657. The cubic root of 1383278688 is about 1114.2172948692.

The spelling of 1383278688 in words is "one billion, three hundred eighty-three million, two hundred seventy-eight thousand, six hundred eighty-eight".