26986220 has 24 divisors (see below), whose sum is σ = 57195600. Its totient is φ = 10694592.

The previous prime is 26986189. The next prime is 26986243. The reversal of 26986220 is 2268962.

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, 4010 + ... + 8369.

It is an arithmetic number, because the mean of its divisors is an integer number (2383150).

Almost surely, 2^26986220 is an apocalyptic number.

26986220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26986220 is an abundant number, since it is smaller than the sum of its proper divisors (30209380).

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

26986220 is a wasteful number, since it uses less digits than its factorization.

26986220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497 (or 12495 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 26986220 is about 5194.8262723598. The cubic root of 26986220 is about 299.9489542779.

The spelling of 26986220 in words is "twenty-six million, nine hundred eighty-six thousand, two hundred twenty".