2154404 has 12 divisors (see below), whose sum is σ = 4308864. Its totient is φ = 923304.

The previous prime is 2154389. The next prime is 2154413. The reversal of 2154404 is 4044512.

2154404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2154404 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 38444 + ... + 38499.

It is an arithmetic number, because the mean of its divisors is an integer number (359072).

2^2154404 is an apocalyptic number.

It is an amenable number.

2154404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2154404 is a wasteful number, since it uses less digits than its factorization.

2154404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76954 (or 76952 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2154404 is about 1467.7888131472. The cubic root of 2154404 is about 129.1543532256.

Adding to 2154404 its reverse (4044512), we get a palindrome (6198916).

The spelling of 2154404 in words is "two million, one hundred fifty-four thousand, four hundred four".