2538404 has 24 divisors (see below), whose sum is σ = 5005056. Its totient is φ = 1116000.

The previous prime is 2538401. The next prime is 2538407. The reversal of 2538404 is 4048352.

It is an interprime number because it is at equal distance from previous prime (2538401) and next prime (2538407).

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2538401) 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, 434 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (208544).

2^2538404 is an apocalyptic number.

It is an amenable number.

2538404 is a deficient number, since it is larger than the sum of its proper divisors (2466652).

2538404 is a wasteful number, since it uses less digits than its factorization.

2538404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2538404 is about 1593.2369566389. The cubic root of 2538404 is about 136.4123156035.

It can be divided in two parts, 253 and 8404, that multiplied together give a palindrome (2126212).

The spelling of 2538404 in words is "two million, five hundred thirty-eight thousand, four hundred four".