25340404 has 12 divisors (see below), whose sum is σ = 46954404. Its totient is φ = 11924864.

The previous prime is 25340401. The next prime is 25340407. The reversal of 25340404 is 40404352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25340401) and next prime (25340407).

It can be written as a sum of positive squares in 2 ways, for example, as 12236004 + 13104400 = 3498^2 + 3620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25340401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186259 + ... + 186394.

It is an arithmetic number, because the mean of its divisors is an integer number (3912867).

Almost surely, 2^25340404 is an apocalyptic number.

It is an amenable number.

25340404 is a deficient number, since it is larger than the sum of its proper divisors (21614000).

25340404 is a wasteful number, since it uses less digits than its factorization.

25340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372674 (or 372672 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 25340404 is about 5033.9253073521. The cubic root of 25340404 is about 293.7229252849.

Adding to 25340404 its reverse (40404352), we get a palindrome (65744756).

The spelling of 25340404 in words is "twenty-five million, three hundred forty thousand, four hundred four".