26402445 has 24 divisors (see below), whose sum is σ = 48457656. Its totient is φ = 13252608.

The previous prime is 26402437. The next prime is 26402449. The reversal of 26402445 is 54420462.

It can be written as a sum of positive squares in 4 ways, for example, as 10673289 + 15729156 = 3267^2 + 3966^2 .

It is not a de Polignac number, because 26402445 - 2³ = 26402437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16492 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (2019069).

Almost surely, 2^26402445 is an apocalyptic number.

It is an amenable number.

26402445 is a deficient number, since it is larger than the sum of its proper divisors (22055211).

26402445 is a wasteful number, since it uses less digits than its factorization.

26402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34541 (or 34538 counting only the distinct ones).

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

The square root of 26402445 is about 5138.3309546973. The cubic root of 26402445 is about 297.7703025534.

The spelling of 26402445 in words is "twenty-six million, four hundred two thousand, four hundred forty-five".