26731420 has 24 divisors (see below), whose sum is σ = 57058848. Its totient is φ = 10516800.

The previous prime is 26731409. The next prime is 26731447. The reversal of 26731420 is 2413762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9736 + ... + 12175.

It is an arithmetic number, because the mean of its divisors is an integer number (2377452).

Almost surely, 2^26731420 is an apocalyptic number.

26731420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26731420 is an abundant number, since it is smaller than the sum of its proper divisors (30327428).

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

26731420 is a wasteful number, since it uses less digits than its factorization.

26731420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21981 (or 21979 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 26731420 is about 5170.2437079890. The cubic root of 26731420 is about 299.0019425458.

The spelling of 26731420 in words is "twenty-six million, seven hundred thirty-one thousand, four hundred twenty".