26431104 has 64 divisors (see below), whose sum is σ = 80245440. Its totient is φ = 7550976.

The previous prime is 26431103. The next prime is 26431129. The reversal of 26431104 is 40113462.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (26431103) 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, 2229 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (1253835).

Almost surely, 2^26431104 is an apocalyptic number.

26431104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26431104 is an abundant number, since it is smaller than the sum of its proper divisors (53814336).

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

26431104 is an equidigital number, since it uses as much as digits as its factorization.

26431104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857 (or 9845 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 26431104 is about 5141.1189443544. The cubic root of 26431104 is about 297.8780036046.

Adding to 26431104 its reverse (40113462), we get a palindrome (66544566).

The spelling of 26431104 in words is "twenty-six million, four hundred thirty-one thousand, one hundred four".