1380004 has 6 divisors (see below), whose sum is σ = 2415014. Its totient is φ = 690000.

The previous prime is 1379993. The next prime is 1380007. The reversal of 1380004 is 4000831.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 52900 = 1152^2 + 230^2 .

It is a super-2 number, since 2×1380004² = 3808822080032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1380004.

It is not an unprimeable number, because it can be changed into a prime (1380007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172497 + ... + 172504.

2^1380004 is an apocalyptic number.

It is an amenable number.

1380004 is a deficient number, since it is larger than the sum of its proper divisors (1035010).

1380004 is a wasteful number, since it uses less digits than its factorization.

1380004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345005 (or 345003 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1380004 is about 1174.7357149589. The cubic root of 1380004 is about 111.3337357207. Note that the first 3 decimals are identical.

Adding to 1380004 its reverse (4000831), we get a palindrome (5380835).

The spelling of 1380004 in words is "one million, three hundred eighty thousand, four".