26430216 has 64 divisors (see below), whose sum is σ = 70200000. Its totient is φ = 8269056.

The previous prime is 26430203. The next prime is 26430277. The reversal of 26430216 is 61203462.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 67750 + ... + 68138.

It is an arithmetic number, because the mean of its divisors is an integer number (1096875).

Almost surely, 2^26430216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26430216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35100000).

26430216 is an abundant number, since it is smaller than the sum of its proper divisors (43769784).

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

26430216 is a wasteful number, since it uses less digits than its factorization.

26430216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 26430216 is about 5141.0325811066. The cubic root of 26430216 is about 297.8746676533.

Adding to 26430216 its reverse (61203462), we get a palindrome (87633678).

The spelling of 26430216 in words is "twenty-six million, four hundred thirty thousand, two hundred sixteen".