1380654768 has 20 divisors (see below), whose sum is σ = 3566691608. Its totient is φ = 460218240.

The previous prime is 1380654763. The next prime is 1380654791. The reversal of 1380654768 is 8674560831.

It is a super-2 number, since 2×1380654768² = 3812415176802267648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 28763641 = 1380654768 / (1 + 3 + 8 + 0 + 6 + 5 + 4 + 7 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (1380654761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14381773 + ... + 14381868.

Almost surely, 2^1380654768 is an apocalyptic number.

It is an amenable number.

1380654768 is an abundant number, since it is smaller than the sum of its proper divisors (2186036840).

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

1380654768 is a wasteful number, since it uses less digits than its factorization.

1380654768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28763652 (or 28763646 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 1380654768 is about 37157.1630779316. The cubic root of 1380654768 is about 1113.5123350737.

The spelling of 1380654768 in words is "one billion, three hundred eighty million, six hundred fifty-four thousand, seven hundred sixty-eight".