26149144 has 48 divisors (see below), whose sum is σ = 58461480. Its totient is φ = 10926720.

The previous prime is 26149141. The next prime is 26149157. The reversal of 26149144 is 44194162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26149141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15259 + ... + 16885.

Almost surely, 2^26149144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26149144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29230740).

26149144 is an abundant number, since it is smaller than the sum of its proper divisors (32312336).

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

26149144 is a wasteful number, since it uses less digits than its factorization.

26149144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 1677 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 26149144 is about 5113.6233729128. The cubic root of 26149144 is about 296.8149867833.

The spelling of 26149144 in words is "twenty-six million, one hundred forty-nine thousand, one hundred forty-four".