26415138 has 16 divisors (see below), whose sum is σ = 53106336. Its totient is φ = 8759040.

The previous prime is 26415133. The next prime is 26415199. The reversal of 26415138 is 83151462.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26415133) 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, 10248 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (3319146).

Almost surely, 2^26415138 is an apocalyptic number.

26415138 is an abundant number, since it is smaller than the sum of its proper divisors (26691198).

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

26415138 is a wasteful number, since it uses less digits than its factorization.

26415138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23009.

The product of its digits is 5760, while the sum is 30.

The square root of 26415138 is about 5139.5659349793. The cubic root of 26415138 is about 297.8180126920.

The spelling of 26415138 in words is "twenty-six million, four hundred fifteen thousand, one hundred thirty-eight".