26057440 has 24 divisors (see below), whose sum is σ = 61561080. Its totient is φ = 10422912.

The previous prime is 26057419. The next prime is 26057467. The reversal of 26057440 is 4475062.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 26057399 and 26057408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81270 + ... + 81589.

It is an arithmetic number, because the mean of its divisors is an integer number (2565045).

Almost surely, 2^26057440 is an apocalyptic number.

26057440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26057440 is an abundant number, since it is smaller than the sum of its proper divisors (35503640).

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

26057440 is a wasteful number, since it uses less digits than its factorization.

26057440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162874 (or 162866 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 26057440 is about 5104.6488615771. The cubic root of 26057440 is about 296.4676076304.

The spelling of 26057440 in words is "twenty-six million, fifty-seven thousand, four hundred forty".