2548404 has 36 divisors (see below), whose sum is σ = 6666660. Its totient is φ = 819840.

The previous prime is 2548391. The next prime is 2548409. The reversal of 2548404 is 4048452.

2548404 is a `hidden beast` number, since 254 + 8 + 404 = 666.

2548404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 725904 + 1822500 = 852^2 + 1350^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2548409) 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 11 ways as a sum of consecutive naturals, for example, 177 + ... + 2264.

It is an arithmetic number, because the mean of its divisors is an integer number (185185).

2^2548404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2548404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3333330).

2548404 is an abundant number, since it is smaller than the sum of its proper divisors (4118256).

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

2548404 is a wasteful number, since it uses less digits than its factorization.

2548404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2548404 is about 1596.3721370658. The cubic root of 2548404 is about 136.5912122321.

The spelling of 2548404 in words is "two million, five hundred forty-eight thousand, four hundred four".