26390149 has 8 divisors (see below), whose sum is σ = 26676000. Its totient is φ = 26106192.

The previous prime is 26390113. The next prime is 26390153. The reversal of 26390149 is 94109362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26390149 - 2²¹ = 24292997 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 (26390179) 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, 67647 + ... + 68035.

It is an arithmetic number, because the mean of its divisors is an integer number (3334500).

Almost surely, 2^26390149 is an apocalyptic number.

It is an amenable number.

26390149 is a deficient number, since it is larger than the sum of its proper divisors (285851).

26390149 is a wasteful number, since it uses less digits than its factorization.

26390149 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 (nonzero) digits is 11664, while the sum is 34.

The square root of 26390149 is about 5137.1343178858. The cubic root of 26390149 is about 297.7240700653.

The spelling of 26390149 in words is "twenty-six million, three hundred ninety thousand, one hundred forty-nine".