26623530 has 48 divisors (see below), whose sum is σ = 73297224. Its totient is φ = 6681600.

The previous prime is 26623529. The next prime is 26623567. The reversal of 26623530 is 3532662.

26623530 is a `hidden beast` number, since 2 + 6 + 623 + 5 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24710841 + 1912689 = 4971^2 + 1383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26623494 and 26623503.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7171 + ... + 10230.

Almost surely, 2^26623530 is an apocalyptic number.

26623530 is an abundant number, since it is smaller than the sum of its proper divisors (46673694).

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

26623530 is a wasteful number, since it uses less digits than its factorization.

26623530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431 (or 17428 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 26623530 is about 5159.7994147060. The cubic root of 26623530 is about 298.5991354435.

The spelling of 26623530 in words is "twenty-six million, six hundred twenty-three thousand, five hundred thirty".