26681420 has 12 divisors (see below), whose sum is σ = 56031024. Its totient is φ = 10672560.

The previous prime is 26681411. The next prime is 26681443. The reversal of 26681420 is 2418662.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667016 + ... + 667055.

It is an arithmetic number, because the mean of its divisors is an integer number (4669252).

Almost surely, 2^26681420 is an apocalyptic number.

26681420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26681420 is an abundant number, since it is smaller than the sum of its proper divisors (29349604).

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

26681420 is a wasteful number, since it uses less digits than its factorization.

26681420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334080 (or 1334078 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 26681420 is about 5165.4060827780. The cubic root of 26681420 is about 298.8154026613.

The spelling of 26681420 in words is "twenty-six million, six hundred eighty-one thousand, four hundred twenty".