26421486 has 96 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 6713280.

The previous prime is 26421469. The next prime is 26421487. The reversal of 26421486 is 68412462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118371 + ... + 118593.

It is an arithmetic number, because the mean of its divisors is an integer number (715008).

Almost surely, 2^26421486 is an apocalyptic number.

26421486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26421486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34320384).

26421486 is an abundant number, since it is smaller than the sum of its proper divisors (42219282).

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

26421486 is a wasteful number, since it uses less digits than its factorization.

26421486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 279 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 26421486 is about 5140.1834597609. The cubic root of 26421486 is about 297.8418676664.

The spelling of 26421486 in words is "twenty-six million, four hundred twenty-one thousand, four hundred eighty-six".