26873860 has 48 divisors (see below), whose sum is σ = 62283312. Its totient is φ = 9676800.

The previous prime is 26873813. The next prime is 26873863. The reversal of 26873860 is 6837862.

26873860 = T₃₃₉ + T₃₄₀ + ... + T₅₈₄.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17189316 + 9684544 = 4146^2 + 3112^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26873863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9400 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (1297569).

Almost surely, 2^26873860 is an apocalyptic number.

26873860 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 26873860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31141656).

26873860 is an abundant number, since it is smaller than the sum of its proper divisors (35409452).

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

26873860 is a wasteful number, since it uses less digits than its factorization.

26873860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 26873860 is about 5184.0003858025. Note that the first 3 decimals coincide. The cubic root of 26873860 is about 299.5320853806.

The spelling of 26873860 in words is "twenty-six million, eight hundred seventy-three thousand, eight hundred sixty".