26679420 has 144 divisors (see below), whose sum is σ = 88452000. Its totient is φ = 6483456.

The previous prime is 26679407. The next prime is 26679431. The reversal of 26679420 is 2497662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99046 + ... + 99314.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 2^26679420 is an apocalyptic number.

26679420 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 26679420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44226000).

26679420 is an abundant number, since it is smaller than the sum of its proper divisors (61772580).

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

26679420 is a wasteful number, since it uses less digits than its factorization.

26679420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 26679420 is about 5165.2124835286. The cubic root of 26679420 is about 298.8079362203.

The spelling of 26679420 in words is "twenty-six million, six hundred seventy-nine thousand, four hundred twenty".