26307216 has 180 divisors, whose sum is σ = 84958848. Its totient is φ = 7577856.

The previous prime is 26307187. The next prime is 26307217. The reversal of 26307216 is 61270362.

It is a happy number.

26307216 is a `hidden beast` number, since 2 + 630 + 7 + 21 + 6 = 666.

It is a super-2 number, since 2×26307216² = 1384139227341312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26307216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26307217) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 559705 + ... + 559751.

Almost surely, 2^26307216 is an apocalyptic number.

26307216 is a gapful number since it is divisible by the number (26) 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 26307216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42479424).

26307216 is an abundant number, since it is smaller than the sum of its proper divisors (58651632).

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

26307216 is a wasteful number, since it uses less digits than its factorization.

26307216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 26307216 is about 5129.0560535054. The cubic root of 26307216 is about 297.4118694768.

Adding to 26307216 its reverse (61270362), we get a palindrome (87577578).

The spelling of 26307216 in words is "twenty-six million, three hundred seven thousand, two hundred sixteen".