1379403 has 16 divisors (see below), whose sum is σ = 2088960. Its totient is φ = 899208.

The previous prime is 1379387. The next prime is 1379423. The reversal of 1379403 is 3049731.

It is not a de Polignac number, because 1379403 - 2⁴ = 1379387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1379423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726 + ... + 1812.

It is an arithmetic number, because the mean of its divisors is an integer number (130560).

2^1379403 is an apocalyptic number.

1379403 is a deficient number, since it is larger than the sum of its proper divisors (709557).

1379403 is a wasteful number, since it uses less digits than its factorization.

1379403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1379403 is about 1174.4798848852. The cubic root of 1379403 is about 111.3175712045.

The spelling of 1379403 in words is "one million, three hundred seventy-nine thousand, four hundred three".