26028864 has 70 divisors (see below), whose sum is σ = 77173074. Its totient is φ = 8674560.

The previous prime is 26028839. The next prime is 26028881. The reversal of 26028864 is 46882062.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 627264 = 5040^2 + 792^2 .

It is a super-2 number, since 2×26028864² = 1355003522260992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2674 + ... + 7694.

Almost surely, 2^26028864 is an apocalyptic number.

26028864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26028864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38586537).

26028864 is an abundant number, since it is smaller than the sum of its proper divisors (51144210).

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

26028864 is an equidigital number, since it uses as much as digits as its factorization.

26028864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 26028864 is about 5101.8490765604. The cubic root of 26028864 is about 296.3591938447.

The spelling of 26028864 in words is "twenty-six million, twenty-eight thousand, eight hundred sixty-four".