26390481 has 8 divisors (see below), whose sum is σ = 37894080. Its totient is φ = 16240272.

The previous prime is 26390479. The next prime is 26390501. The reversal of 26390481 is 18409362.

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

It is not a de Polignac number, because 26390481 - 2¹ = 26390479 is a prime.

It is a super-2 number, since 2×26390481² = 1392914974822722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26390461) 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, 338301 + ... + 338378.

It is an arithmetic number, because the mean of its divisors is an integer number (4736760).

Almost surely, 2^26390481 is an apocalyptic number.

It is an amenable number.

26390481 is a deficient number, since it is larger than the sum of its proper divisors (11503599).

26390481 is a wasteful number, since it uses less digits than its factorization.

26390481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676695.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 26390481 is about 5137.1666315198. The cubic root of 26390481 is about 297.7253185612.

The spelling of 26390481 in words is "twenty-six million, three hundred ninety thousand, four hundred eighty-one".