26315916 has 48 divisors (see below), whose sum is σ = 67928448. Its totient is φ = 7862400.

The previous prime is 26315909. The next prime is 26315921. The reversal of 26315916 is 61951362.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 8271 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (1415176).

Almost surely, 2^26315916 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 26315916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33964224).

26315916 is an abundant number, since it is smaller than the sum of its proper divisors (41612532).

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

26315916 is a wasteful number, since it uses less digits than its factorization.

26315916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2820 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 26315916 is about 5129.9040926707. The cubic root of 26315916 is about 297.4446513326. Note that the first 3 decimals are identical.

It can be divided in two parts, 263159 and 16, that added together give a triangular number (263175 = T₇₂₅).

The spelling of 26315916 in words is "twenty-six million, three hundred fifteen thousand, nine hundred sixteen".