26220164 has 6 divisors (see below), whose sum is σ = 45885294. Its totient is φ = 13110080.

The previous prime is 26220163. The next prime is 26220191. The reversal of 26220164 is 46102262.

It can be written as a sum of positive squares in only one way, i.e., 24581764 + 1638400 = 4958^2 + 1280^2 .

It is not an unprimeable number, because it can be changed into a prime (26220163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277517 + ... + 3277524.

It is an arithmetic number, because the mean of its divisors is an integer number (7647549).

Almost surely, 2^26220164 is an apocalyptic number.

It is an amenable number.

26220164 is a deficient number, since it is larger than the sum of its proper divisors (19665130).

26220164 is a wasteful number, since it uses less digits than its factorization.

26220164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555045 (or 6555043 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 26220164 is about 5120.5628596864. The cubic root of 26220164 is about 297.0834563126.

The spelling of 26220164 in words is "twenty-six million, two hundred twenty thousand, one hundred sixty-four".