26424945 has 24 divisors (see below), whose sum is σ = 47385000. Its totient is φ = 13606656.

The previous prime is 26424943. The next prime is 26424973. The reversal of 26424945 is 54942462.

26424945 is a `hidden beast` number, since 2 + 642 + 4 + 9 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1354896 + 25070049 = 1164^2 + 5007^2 .

It is not a de Polignac number, because 26424945 - 2¹ = 26424943 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26424941) 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 23 ways as a sum of consecutive naturals, for example, 8820 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (1974375).

Almost surely, 2^26424945 is an apocalyptic number.

It is an amenable number.

26424945 is a deficient number, since it is larger than the sum of its proper divisors (20960055).

26424945 is a wasteful number, since it uses less digits than its factorization.

26424945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289 (or 20286 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 26424945 is about 5140.5199153393. The cubic root of 26424945 is about 297.8548645390.

The spelling of 26424945 in words is "twenty-six million, four hundred twenty-four thousand, nine hundred forty-five".