26312890 has 16 divisors (see below), whose sum is σ = 47423880. Its totient is φ = 10511680.

The previous prime is 26312849. The next prime is 26312911. The reversal of 26312890 is 9821362.

It can be written as a sum of positive squares in 4 ways, for example, as 25674489 + 638401 = 5067^2 + 799^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11220 + ... + 13360.

Almost surely, 2^26312890 is an apocalyptic number.

26312890 is a deficient number, since it is larger than the sum of its proper divisors (21110990).

26312890 is a wasteful number, since it uses less digits than its factorization.

26312890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 26312890 is about 5129.6091469039. The cubic root of 26312890 is about 297.4332500952.

The spelling of 26312890 in words is "twenty-six million, three hundred twelve thousand, eight hundred ninety".