26216780 has 24 divisors (see below), whose sum is σ = 57449952. Its totient is φ = 10030592.

The previous prime is 26216779. The next prime is 26216797. The reversal of 26216780 is 8761262.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28037 + ... + 28956.

It is an arithmetic number, because the mean of its divisors is an integer number (2393748).

Almost surely, 2^26216780 is an apocalyptic number.

26216780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26216780 is an abundant number, since it is smaller than the sum of its proper divisors (31233172).

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

26216780 is a wasteful number, since it uses less digits than its factorization.

26216780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57025 (or 57023 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 26216780 is about 5120.2324165999. The cubic root of 26216780 is about 297.0706751357.

The spelling of 26216780 in words is "twenty-six million, two hundred sixteen thousand, seven hundred eighty".