26445478 has 16 divisors (see below), whose sum is σ = 40310784. Its totient is φ = 13010440.

The previous prime is 26445437. The next prime is 26445479. The reversal of 26445478 is 87454462.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26445478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26445479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40551 + ... + 41197.

It is an arithmetic number, because the mean of its divisors is an integer number (2519424).

Almost surely, 2^26445478 is an apocalyptic number.

26445478 is a deficient number, since it is larger than the sum of its proper divisors (13865306).

26445478 is a wasteful number, since it uses less digits than its factorization.

26445478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its digits is 215040, while the sum is 40.

The square root of 26445478 is about 5142.5166990492. The cubic root of 26445478 is about 297.9319920480.

The spelling of 26445478 in words is "twenty-six million, four hundred forty-five thousand, four hundred seventy-eight".