1603401 has 8 divisors (see below), whose sum is σ = 2159040. Its totient is φ = 1058352.

The previous prime is 1603397. The next prime is 1603403. The reversal of 1603401 is 1043061.

1603401 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1603401 - 2² = 1603397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1603403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (269880).

2^1603401 is an apocalyptic number.

It is an amenable number.

1603401 is a deficient number, since it is larger than the sum of its proper divisors (555639).

1603401 is a wasteful number, since it uses less digits than its factorization.

1603401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1603401 is about 1266.2547137128. The cubic root of 1603401 is about 117.0435224159.

Adding to 1603401 its reverse (1043061), we get a palindrome (2646462).

The spelling of 1603401 in words is "one million, six hundred three thousand, four hundred one".