26930556 has 60 divisors (see below), whose sum is σ = 72076312. Its totient is φ = 8763552.

The previous prime is 26930549. The next prime is 26930557. The reversal of 26930556 is 65503962.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 26930556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26930557) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12966 + ... + 14898.

Almost surely, 2^26930556 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 26930556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36038156).

26930556 is an abundant number, since it is smaller than the sum of its proper divisors (45145756).

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

26930556 is a wasteful number, since it uses less digits than its factorization.

26930556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 26930556 is about 5189.4658684685. The cubic root of 26930556 is about 299.7425791782.

It can be divided in two parts, 269305 and 56, that added together give a square (269361 = 519²).

The spelling of 26930556 in words is "twenty-six million, nine hundred thirty thousand, five hundred fifty-six".