26686464 has 176 divisors, whose sum is σ = 87251328. Its totient is φ = 7077888.

The previous prime is 26686453. The next prime is 26686477. The reversal of 26686464 is 46468662.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365532 + ... + 365604.

Almost surely, 2^26686464 is an apocalyptic number.

26686464 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 26686464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43625664).

26686464 is an abundant number, since it is smaller than the sum of its proper divisors (60564864).

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

26686464 is a wasteful number, since it uses less digits than its factorization.

26686464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 26686464 is about 5165.8943078619. The cubic root of 26686464 is about 298.8342313683.

The spelling of 26686464 in words is "twenty-six million, six hundred eighty-six thousand, four hundred sixty-four".