26493984 has 72 divisors (see below), whose sum is σ = 82201392. Its totient is φ = 8027520.

The previous prime is 26493979. The next prime is 26493997. The reversal of 26493984 is 48939462.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1014 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (1141686).

Almost surely, 2^26493984 is an apocalyptic number.

26493984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26493984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41100696).

26493984 is an abundant number, since it is smaller than the sum of its proper divisors (55707408).

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

26493984 is a wasteful number, since it uses less digits than its factorization.

26493984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390 (or 8379 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 26493984 is about 5147.2307117517. The cubic root of 26493984 is about 298.1140353021.

The spelling of 26493984 in words is "twenty-six million, four hundred ninety-three thousand, nine hundred eighty-four".