26153440 has 48 divisors (see below), whose sum is σ = 62149248. Its totient is φ = 10400256.

The previous prime is 26153423. The next prime is 26153459. The reversal of 26153440 is 4435162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35314 + ... + 36046.

It is an arithmetic number, because the mean of its divisors is an integer number (1294776).

Almost surely, 2^26153440 is an apocalyptic number.

26153440 is a gapful number since it is divisible by the number (20) 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 26153440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31074624).

26153440 is an abundant number, since it is smaller than the sum of its proper divisors (35995808).

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

26153440 is a wasteful number, since it uses less digits than its factorization.

26153440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26153440 is about 5114.0434100621. The cubic root of 26153440 is about 296.8312403091.

The spelling of 26153440 in words is "twenty-six million, one hundred fifty-three thousand, four hundred forty".