26478249 has 32 divisors (see below), whose sum is σ = 41717760. Its totient is φ = 14625792.

The previous prime is 26478211. The next prime is 26478253. The reversal of 26478249 is 94287462.

It is not a de Polignac number, because 26478249 - 2⁷ = 26478121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26478249.

It is not an unprimeable number, because it can be changed into a prime (26478259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137097 + ... + 137289.

It is an arithmetic number, because the mean of its divisors is an integer number (1303680).

Almost surely, 2^26478249 is an apocalyptic number.

It is an amenable number.

26478249 is a deficient number, since it is larger than the sum of its proper divisors (15239511).

26478249 is a wasteful number, since it uses less digits than its factorization.

26478249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its digits is 193536, while the sum is 42.

The square root of 26478249 is about 5145.7019929257. The cubic root of 26478249 is about 298.0550061367.

The spelling of 26478249 in words is "twenty-six million, four hundred seventy-eight thousand, two hundred forty-nine".