26390930 has 8 divisors (see below), whose sum is σ = 47503692. Its totient is φ = 10556368.

The previous prime is 26390909. The next prime is 26390939. The reversal of 26390930 is 3909362.

It can be written as a sum of positive squares in 2 ways, for example, as 25593481 + 797449 = 5059^2 + 893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (26390939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319537 + ... + 1319556.

Almost surely, 2^26390930 is an apocalyptic number.

26390930 is a deficient number, since it is larger than the sum of its proper divisors (21112762).

26390930 is a wasteful number, since it uses less digits than its factorization.

26390930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639100.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 26390930 is about 5137.2103324664. The cubic root of 26390930 is about 297.7270070224.

The spelling of 26390930 in words is "twenty-six million, three hundred ninety thousand, nine hundred thirty".