26958140 has 48 divisors (see below), whose sum is σ = 62191584. Its totient is φ = 9734400.

The previous prime is 26958137. The next prime is 26958149. The reversal of 26958140 is 4185962.

It is a self number, because there is not a number n which added to its sum of digits gives 26958140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26958149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39482 + ... + 40158.

It is an arithmetic number, because the mean of its divisors is an integer number (1295658).

Almost surely, 2^26958140 is an apocalyptic number.

26958140 is a gapful number since it is divisible by the number (20) 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 26958140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31095792).

26958140 is an abundant number, since it is smaller than the sum of its proper divisors (35233444).

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

26958140 is a wasteful number, since it uses less digits than its factorization.

26958140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 26958140 is about 5192.1228799018. The cubic root of 26958140 is about 299.8448827723.

The spelling of 26958140 in words is "twenty-six million, nine hundred fifty-eight thousand, one hundred forty".