1399041 has 24 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 782496.

The previous prime is 1399039. The next prime is 1399063. The reversal of 1399041 is 1409931.

It is not a de Polignac number, because 1399041 - 2¹ = 1399039 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1398996 and 1399014.

It is not an unprimeable number, because it can be changed into a prime (1399441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3130 + ... + 3548.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1399041 is an apocalyptic number.

It is an amenable number.

1399041 is a deficient number, since it is larger than the sum of its proper divisors (959679).

1399041 is a wasteful number, since it uses less digits than its factorization.

1399041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1399041 is about 1182.8106357317. The cubic root of 1399041 is about 111.8433449760.

It can be divided in two parts, 139 and 9041, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 1399041 in words is "one million, three hundred ninety-nine thousand, forty-one".