26783420 has 24 divisors (see below), whose sum is σ = 57443904. Its totient is φ = 10485056.

The previous prime is 26783413. The next prime is 26783429. The reversal of 26783420 is 2438762.

26783420 is nontrivially palindromic in base 12.

It is a super-3 number, since 3×26783420³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26783429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13307 + ... + 15186.

It is an arithmetic number, because the mean of its divisors is an integer number (2393496).

Almost surely, 2^26783420 is an apocalyptic number.

26783420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26783420 is an abundant number, since it is smaller than the sum of its proper divisors (30660484).

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

26783420 is a wasteful number, since it uses less digits than its factorization.

26783420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28549 (or 28547 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 26783420 is about 5175.2700412635. The cubic root of 26783420 is about 299.1956974369.

The spelling of 26783420 in words is "twenty-six million, seven hundred eighty-three thousand, four hundred twenty".