1381004 has 12 divisors (see below), whose sum is σ = 2453304. Its totient is φ = 680064.

The previous prime is 1380997. The next prime is 1381027. The reversal of 1381004 is 4001831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (204442).

2^1381004 is an apocalyptic number.

It is an amenable number.

1381004 is a deficient number, since it is larger than the sum of its proper divisors (1072300).

1381004 is a wasteful number, since it uses less digits than its factorization.

1381004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1381004 is about 1175.1612655291. The cubic root of 1381004 is about 111.3606213564.

Adding to 1381004 its reverse (4001831), we get a palindrome (5382835).

The spelling of 1381004 in words is "one million, three hundred eighty-one thousand, four".