26143140 has 48 divisors (see below), whose sum is σ = 74910528. Its totient is φ = 6808704.

The previous prime is 26143133. The next prime is 26143141. The reversal of 26143140 is 4134162.

It is not an unprimeable number, because it can be changed into a prime (26143141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487 + ... + 7646.

It is an arithmetic number, because the mean of its divisors is an integer number (1560636).

Almost surely, 2^26143140 is an apocalyptic number.

26143140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26143140 is an abundant number, since it is smaller than the sum of its proper divisors (48767388).

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

26143140 is a wasteful number, since it uses less digits than its factorization.

26143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188 (or 10186 counting only the distinct ones).

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

The square root of 26143140 is about 5113.0362799417. The cubic root of 26143140 is about 296.7922682118.

The spelling of 26143140 in words is "twenty-six million, one hundred forty-three thousand, one hundred forty".