26220664 has 16 divisors (see below), whose sum is σ = 52056000. Its totient is φ = 12339072.

The previous prime is 26220661. The next prime is 26220673. The reversal of 26220664 is 46602262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26220661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96264 + ... + 96535.

It is an arithmetic number, because the mean of its divisors is an integer number (3253500).

Almost surely, 2^26220664 is an apocalyptic number.

It is an amenable number.

26220664 is a deficient number, since it is larger than the sum of its proper divisors (25835336).

26220664 is a wasteful number, since it uses less digits than its factorization.

26220664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192822 (or 192818 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 26220664 is about 5120.6116822114. The cubic root of 26220664 is about 297.0853446912.

The spelling of 26220664 in words is "twenty-six million, two hundred twenty thousand, six hundred sixty-four".