26840149 has 16 divisors (see below), whose sum is σ = 32698368. Its totient is φ = 21531312.

The previous prime is 26840147. The next prime is 26840153. The reversal of 26840149 is 94104862.

It is not a de Polignac number, because 26840149 - 2¹ = 26840147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26840147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794 + ... + 9340.

It is an arithmetic number, because the mean of its divisors is an integer number (2043648).

Almost surely, 2^26840149 is an apocalyptic number.

It is an amenable number.

26840149 is a deficient number, since it is larger than the sum of its proper divisors (5858219).

26840149 is a wasteful number, since it uses less digits than its factorization.

26840149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 26840149 is about 5180.7479189785. The cubic root of 26840149 is about 299.4067870270.

The spelling of 26840149 in words is "twenty-six million, eight hundred forty thousand, one hundred forty-nine".