2011404 has 24 divisors (see below), whose sum is σ = 4845568. Its totient is φ = 648720.

The previous prime is 2011393. The next prime is 2011409. The reversal of 2011404 is 4041102.

It is a super-4 number, since 4×2011404⁴ (a number of 26 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2011404.

It is not an unprimeable number, because it can be changed into a prime (2011409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332 + ... + 3075.

2^2011404 is an apocalyptic number.

It is an amenable number.

2011404 is an abundant number, since it is smaller than the sum of its proper divisors (2834164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011404 is a wasteful number, since it uses less digits than its factorization.

2011404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2011404 is about 1418.2397540614. The cubic root of 2011404 is about 126.2311202693.

Adding to 2011404 its reverse (4041102), we get a palindrome (6052506).

It can be divided in two parts, 2011 and 404, that added together give a triangular number (2415 = T₆₉).

The spelling of 2011404 in words is "two million, eleven thousand, four hundred four".