2013404 has 6 divisors (see below), whose sum is σ = 3523464. Its totient is φ = 1006700.

The previous prime is 2013391. The next prime is 2013409. The reversal of 2013404 is 4043102.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251672 + ... + 251679.

It is an arithmetic number, because the mean of its divisors is an integer number (587244).

2^2013404 is an apocalyptic number.

It is an amenable number.

2013404 is a deficient number, since it is larger than the sum of its proper divisors (1510060).

2013404 is a wasteful number, since it uses less digits than its factorization.

2013404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503355 (or 503353 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2013404 is about 1418.9446782733. The cubic root of 2013404 is about 126.2729448870.

Adding to 2013404 its reverse (4043102), we get a palindrome (6056506).

The spelling of 2013404 in words is "two million, thirteen thousand, four hundred four".