26534780 has 12 divisors (see below), whose sum is σ = 55723080. Its totient is φ = 10613904.

The previous prime is 26534737. The next prime is 26534789. The reversal of 26534780 is 8743562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26534780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26534789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663350 + ... + 663389.

It is an arithmetic number, because the mean of its divisors is an integer number (4643590).

Almost surely, 2^26534780 is an apocalyptic number.

26534780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26534780 is an abundant number, since it is smaller than the sum of its proper divisors (29188300).

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

26534780 is a wasteful number, since it uses less digits than its factorization.

26534780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326748 (or 1326746 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 26534780 is about 5151.1920950397. The cubic root of 26534780 is about 298.2669709415.

The spelling of 26534780 in words is "twenty-six million, five hundred thirty-four thousand, seven hundred eighty".