26823490 has 16 divisors (see below), whose sum is σ = 48343680. Its totient is φ = 10715760.

The previous prime is 26823487. The next prime is 26823491. The reversal of 26823490 is 9432862.

It is not an unprimeable number, because it can be changed into a prime (26823491) 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 7 ways as a sum of consecutive naturals, for example, 11221 + ... + 13399.

It is an arithmetic number, because the mean of its divisors is an integer number (3021480).

Almost surely, 2^26823490 is an apocalyptic number.

26823490 is a deficient number, since it is larger than the sum of its proper divisors (21520190).

26823490 is a wasteful number, since it uses less digits than its factorization.

26823490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 26823490 is about 5179.1398899817. The cubic root of 26823490 is about 299.3448294728.

It can be divided in two parts, 268234 and 90, that added together give a square (268324 = 518²).

The spelling of 26823490 in words is "twenty-six million, eight hundred twenty-three thousand, four hundred ninety".