26049520 has 80 divisors (see below), whose sum is σ = 69870528. Its totient is φ = 8847360.

The previous prime is 26049497. The next prime is 26049571. The reversal of 26049520 is 2594062.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101232 + ... + 101488.

Almost surely, 2^26049520 is an apocalyptic number.

26049520 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 26049520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34935264).

26049520 is an abundant number, since it is smaller than the sum of its proper divisors (43821008).

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

26049520 is a wasteful number, since it uses less digits than its factorization.

26049520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 26049520 is about 5103.8730391733. The cubic root of 26049520 is about 296.4375680795.

It can be divided in two parts, 26049 and 520, that added together give a square (26569 = 163²).

The spelling of 26049520 in words is "twenty-six million, forty-nine thousand, five hundred twenty".