26263890 has 48 divisors (see below), whose sum is σ = 71884800. Its totient is φ = 6634656.

The previous prime is 26263889. The next prime is 26263901. The reversal of 26263890 is 9836262.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5970 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (1497600).

Almost surely, 2^26263890 is an apocalyptic number.

26263890 is an abundant number, since it is smaller than the sum of its proper divisors (45620910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26263890 is a wasteful number, since it uses less digits than its factorization.

26263890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15391 (or 15388 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 26263890 is about 5124.8307289119. The cubic root of 26263890 is about 297.2485081258.

The spelling of 26263890 in words is "twenty-six million, two hundred sixty-three thousand, eight hundred ninety".