26142660 has 72 divisors (see below), whose sum is σ = 79724736. Its totient is φ = 6934080.

The previous prime is 26142653. The next prime is 26142661. The reversal of 26142660 is 6624162.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26142661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55747 + ... + 56213.

It is an arithmetic number, because the mean of its divisors is an integer number (1107288).

Almost surely, 2^26142660 is an apocalyptic number.

26142660 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 26142660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39862368).

26142660 is an abundant number, since it is smaller than the sum of its proper divisors (53582076).

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

26142660 is a wasteful number, since it uses less digits than its factorization.

26142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26142660 is about 5112.9893408846. The cubic root of 26142660 is about 296.7904517868.

The spelling of 26142660 in words is "twenty-six million, one hundred forty-two thousand, six hundred sixty".