26404245 has 32 divisors (see below), whose sum is σ = 53648640. Its totient is φ = 12070080.

The previous prime is 26404241. The next prime is 26404267. The reversal of 26404245 is 54240462.

It is not a de Polignac number, because 26404245 - 2² = 26404241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26404241) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13026 + ... + 14915.

It is an arithmetic number, because the mean of its divisors is an integer number (1676520).

Almost surely, 2^26404245 is an apocalyptic number.

It is an amenable number.

26404245 is an abundant number, since it is smaller than the sum of its proper divisors (27244395).

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

26404245 is a wasteful number, since it uses less digits than its factorization.

26404245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27962 (or 27956 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 26404245 is about 5138.5061058638. The cubic root of 26404245 is about 297.7770692798. Note that the first 3 decimals are identical.

The spelling of 26404245 in words is "twenty-six million, four hundred four thousand, two hundred forty-five".