26928220 has 24 divisors (see below), whose sum is σ = 61690608. Its totient is φ = 9792000.

The previous prime is 26928173. The next prime is 26928233. The reversal of 26928220 is 2282962.

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 7 ways as a sum of consecutive naturals, for example, 60981 + ... + 61420.

It is an arithmetic number, because the mean of its divisors is an integer number (2570442).

Almost surely, 2^26928220 is an apocalyptic number.

26928220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26928220 is an abundant number, since it is smaller than the sum of its proper divisors (34762388).

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

26928220 is a wasteful number, since it uses less digits than its factorization.

26928220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122421 (or 122419 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 26928220 is about 5189.2407922547. The cubic root of 26928220 is about 299.7339122089.

The spelling of 26928220 in words is "twenty-six million, nine hundred twenty-eight thousand, two hundred twenty".