26512140 has 48 divisors (see below), whose sum is σ = 75263328. Its totient is φ = 6971904.

The previous prime is 26512111. The next prime is 26512151. The reversal of 26512140 is 4121562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1354 + ... + 7406.

It is an arithmetic number, because the mean of its divisors is an integer number (1567986).

Almost surely, 2^26512140 is an apocalyptic number.

26512140 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 26512140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37631664).

26512140 is an abundant number, since it is smaller than the sum of its proper divisors (48751188).

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

26512140 is a wasteful number, since it uses less digits than its factorization.

26512140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138 (or 6136 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 26512140 is about 5148.9940765163. The cubic root of 26512140 is about 298.1821177079.

The spelling of 26512140 in words is "twenty-six million, five hundred twelve thousand, one hundred forty".