26228658 has 16 divisors (see below), whose sum is σ = 53318016. Its totient is φ = 8599440.

The previous prime is 26228651. The next prime is 26228659. The reversal of 26228658 is 85682262.

It is not an unprimeable number, because it can be changed into a prime (26228651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35466 + ... + 36197.

It is an arithmetic number, because the mean of its divisors is an integer number (3332376).

Almost surely, 2^26228658 is an apocalyptic number.

26228658 is an abundant number, since it is smaller than the sum of its proper divisors (27089358).

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

26228658 is a wasteful number, since it uses less digits than its factorization.

26228658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71729.

The product of its digits is 92160, while the sum is 39.

The square root of 26228658 is about 5121.3921935349. The cubic root of 26228658 is about 297.1155328275.

It can be divided in two parts, 262 and 28658, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 26228658 in words is "twenty-six million, two hundred twenty-eight thousand, six hundred fifty-eight".