26484390 has 48 divisors (see below), whose sum is σ = 69552288. Its totient is φ = 6991488.

The previous prime is 26484383. The next prime is 26484391. The reversal of 26484390 is 9348462.

It is a happy number.

26484390 is a `hidden beast` number, since 2 + 648 + 4 + 3 + 9 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26484391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7842 + ... + 10698.

It is an arithmetic number, because the mean of its divisors is an integer number (1449006).

Almost surely, 2^26484390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26484390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34776144).

26484390 is an abundant number, since it is smaller than the sum of its proper divisors (43067898).

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

26484390 is a wasteful number, since it uses less digits than its factorization.

26484390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 26484390 is about 5146.2986699180. The cubic root of 26484390 is about 298.0780466117.

It can be divided in two parts, 26 and 484390, that added together give a square (484416 = 696²).

The spelling of 26484390 in words is "twenty-six million, four hundred eighty-four thousand, three hundred ninety".