1378568 has 8 divisors (see below), whose sum is σ = 2584830. Its totient is φ = 689280.

The previous prime is 1378567. The next prime is 1378579. The reversal of 1378568 is 8658731.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 334084 = 1022^2 + 578^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1378561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86153 + ... + 86168.

2^1378568 is an apocalyptic number.

It is an amenable number.

1378568 is a deficient number, since it is larger than the sum of its proper divisors (1206262).

1378568 is a wasteful number, since it uses less digits than its factorization.

1378568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172327 (or 172323 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 1378568 is about 1174.1243545724. The cubic root of 1378568 is about 111.2951052214.

The spelling of 1378568 in words is "one million, three hundred seventy-eight thousand, five hundred sixty-eight".