26231090 has 16 divisors (see below), whose sum is σ = 47864088. Its totient is φ = 10348416.

The previous prime is 26231087. The next prime is 26231099. The reversal of 26231090 is 9013262.

It can be written as a sum of positive squares in 4 ways, for example, as 23629321 + 2601769 = 4861^2 + 1613^2 .

It is not an unprimeable number, because it can be changed into a prime (26231099) 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, 17237 + ... + 18696.

Almost surely, 2^26231090 is an apocalyptic number.

26231090 is a deficient number, since it is larger than the sum of its proper divisors (21632998).

26231090 is a wasteful number, since it uses less digits than its factorization.

26231090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36013.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 26231090 is about 5121.6296234695. The cubic root of 26231090 is about 297.1247156921.

The spelling of 26231090 in words is "twenty-six million, two hundred thirty-one thousand, ninety".