26306780 has 24 divisors (see below), whose sum is σ = 55684608. Its totient is φ = 10438848.

The previous prime is 26306771. The next prime is 26306801. The reversal of 26306780 is 8760362.

It is a congruent number.

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, 2639 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (2320192).

Almost surely, 2^26306780 is an apocalyptic number.

26306780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26306780 is an abundant number, since it is smaller than the sum of its proper divisors (29377828).

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

26306780 is a wasteful number, since it uses less digits than its factorization.

26306780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10493 (or 10491 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 26306780 is about 5129.0135503818. The cubic root of 26306780 is about 297.4102264258.

The spelling of 26306780 in words is "twenty-six million, three hundred six thousand, seven hundred eighty".