26265690 has 96 divisors (see below), whose sum is σ = 76355136. Its totient is φ = 6209280.

The previous prime is 26265689. The next prime is 26265691. The reversal of 26265690 is 9656262.

It is an interprime number because it is at equal distance from previous prime (26265689) and next prime (26265691).

It is a super-2 number, since 2×26265690² = 1379772942352200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26265691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42262 + ... + 42878.

It is an arithmetic number, because the mean of its divisors is an integer number (795366).

Almost surely, 2^26265690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26265690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38177568).

26265690 is an abundant number, since it is smaller than the sum of its proper divisors (50089446).

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

26265690 is a wasteful number, since it uses less digits than its factorization.

26265690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 26265690 is about 5125.0063414595. The cubic root of 26265690 is about 297.2552986290.

The spelling of 26265690 in words is "twenty-six million, two hundred sixty-five thousand, six hundred ninety".