26998220 has 24 divisors (see below), whose sum is σ = 56827008. Its totient is φ = 10774400.

The previous prime is 26998219. The next prime is 26998229. The reversal of 26998220 is 2289962.

It is not an unprimeable number, because it can be changed into a prime (26998229) 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, 9125 + ... + 11715.

It is an arithmetic number, because the mean of its divisors is an integer number (2367792).

Almost surely, 2^26998220 is an apocalyptic number.

26998220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26998220 is an abundant number, since it is smaller than the sum of its proper divisors (29828788).

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

26998220 is a wasteful number, since it uses less digits than its factorization.

26998220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3119 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 26998220 is about 5195.9811393037. The cubic root of 26998220 is about 299.9934072625.

It can be divided in two parts, 269 and 98220, that added together give a palindrome (98489).

The spelling of 26998220 in words is "twenty-six million, nine hundred ninety-eight thousand, two hundred twenty".