1380608 has 18 divisors (see below), whose sum is σ = 2756334. Its totient is φ = 690176.

The previous prime is 1380607. The next prime is 1380611. The reversal of 1380608 is 8060831.

It can be written as a sum of positive squares in only one way, i.e., 1364224 + 16384 = 1168^2 + 128^2 .

It is not an unprimeable number, because it can be changed into a prime (1380607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2441 + ... + 2952.

2^1380608 is an apocalyptic number.

It is an amenable number.

1380608 is a deficient number, since it is larger than the sum of its proper divisors (1375726).

1380608 is an frugal number, since it uses more digits than its factorization.

1380608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409 (or 5395 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1380608 is about 1174.9927659352. The cubic root of 1380608 is about 111.3499761973.

The spelling of 1380608 in words is "one million, three hundred eighty thousand, six hundred eight".