25438104 has 128 divisors (see below), whose sum is σ = 76032000. Its totient is φ = 7862400.

The previous prime is 25438057. The next prime is 25438111. The reversal of 25438104 is 40183452.

It is a super-2 number, since 2×25438104² = 1294194270229632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194119 + ... + 194249.

It is an arithmetic number, because the mean of its divisors is an integer number (594000).

Almost surely, 2^25438104 is an apocalyptic number.

25438104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25438104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38016000).

25438104 is an abundant number, since it is smaller than the sum of its proper divisors (50593896).

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

25438104 is a wasteful number, since it uses less digits than its factorization.

25438104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25438104 is about 5043.6201284395. The cubic root of 25438104 is about 294.0999243847.

The spelling of 25438104 in words is "twenty-five million, four hundred thirty-eight thousand, one hundred four".