26406560 has 24 divisors (see below), whose sum is σ = 62385876. Its totient is φ = 10562560.

The previous prime is 26406557. The next prime is 26406563. The reversal of 26406560 is 6560462.

It is an interprime number because it is at equal distance from previous prime (26406557) and next prime (26406563).

It can be written as a sum of positive squares in 2 ways, for example, as 25847056 + 559504 = 5084^2 + 748^2 .

It is a super-2 number, since 2×26406560² = 1394612822067200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26406563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82361 + ... + 82680.

Almost surely, 2^26406560 is an apocalyptic number.

26406560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26406560 is an abundant number, since it is smaller than the sum of its proper divisors (35979316).

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

26406560 is a wasteful number, since it uses less digits than its factorization.

26406560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165056 (or 165048 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 26406560 is about 5138.7313609489. The cubic root of 26406560 is about 297.7857715897.

The spelling of 26406560 in words is "twenty-six million, four hundred six thousand, five hundred sixty".